Updating MX to new version
- 1 Who this article is for
- 2 Who is not intended reader
- 3 Introduction to updating MX
- 4 Knowing when a new release is available
- 5 Where to download a release distribution
- 6 What to read (and when) before updating
- 6.1 Updating from immediately preceding build
- 6.2 Updating to a new minor build, skipping in-between minor builds
- 6.3 Updating to a new major version
- 6.4 Updating from a very old version
- 7 Recommended Actions when Updating
- 7.1 Back-ups
- 7.2 The two approaches
- 7.3 After an update if you use the standard web template files
- 8 After update - checking for bugs in MX or mistakes in your installation
Who this article is for
Please be aware that if you want to move from Cumulus 1 to MX, you should read Migrating_from_Cumulus_1_to_MX article instead.
This article is for those who already use MX, and so are comfortable with basic MX installation and running.
Who is not intended reader
Cumulus MX has been updated so frequently in 2020, that you may be used to updating to a new build, and for you this article is not useful.
Introduction to updating MX
HansR on support forum is developing an installer as this is being typed, see this topic.
I hope he will update this section appropriately.
Updating if you are running MX on a Linux computer
You might want to read galfert's post on the support forum here for the relevant Linux instructions in a concise format.
Updating if you use the start/stop management script
This section contributed by Jank on support forum. Note the version on the forum might have been updated from the original included here.
1. look on Software download page, find the link to latest version, and fill out the '...' below appropriately as you run these 2 commands on your device where you do downloads:
cd /tmp wget https://github.com/cumulusmx/CumulusMX/ ... .zip
2. Once that download is complete, start cumulusmx.sh with option -u
3.When asked for the zip file, enter
and hit the TAB Button
4.Choose the zip file with the CumulusMX update and hit return.
5. Follow the on screen instructions
6. With each update component .....you can choose: [y]es, [n]o, [A]ll, [N]one, [r]ename
I would recommend select A as that will simply replace all files without further action.
CumulusMX will be restarted after update completes.
You can check if the update was successful by using option -s:
Updating to the next MX release if you have not updated before
The simplest update is from the immediate preceding build, and the steps required are summarised as follows:
- Download the release distribution zip for the next build (see later for where from)
- Use Control-C to stop Cumulus MX (see later if running as a service)
- Take a backup of your complete existing MX installation (as it is not running, no files will be locked)
- Unzip the new distribution overwriting the previous installation (the release announcement might ask you to delete obsolete files)
- Run any one-off batch scripts needed to prepare for upgrade (see later for examples)
- Restart your Cumulus MX (consider running with -debug parameter if you are not sure the new build is bug free)
The remainder of this article explains all options for updating, and is thus less simple than above.
Considerations that determine when to update
Cumulus MX will nag you, in various places, to make you aware if you are not running the latest build. Some people will choose to update as soon after a new release as they can. However, each upgrade does involve a period when MX is not running, and that causes some loss of data:
- for some weather station types readings taken every minute, or more frequently, are replaced by whatever period you station data logger records at;
- for other stations, without their own logging, all data is lost for the period when MX is not running.
Other, more cautious, people (like the present writer) will not update each time a new release becomes available (and there are a lot of new releases in 2020), here are some of the reasons:
- you will see in the Cumulus Support Forum that many builds have bugs, and so you realise that it is better to stick with your fully working release, than install one with bugs;
- you may wish to avoid the loss of data mentioned above, by minimising the number of times that you stop MX;
- you may run MX on a computer that you rarely visit, perhaps even in a remote location not often visited, so you prefer to leave it untouched, rather than risk possibility of being unable to restart remotely;
- you may just have more important ways to use your time than updating your MX software, and some new builds might not give you any benefits that make it worthwhile to change your priorities.
It is perfectly possible to update from old versions of MX to the latest, skipping intermediate versions, but there are some key versions that you should not skip over. This article also includes suggestions for which releases to install and get running before moving onto newer releases. This will be especially useful for those people who do not immediately update to new releases, as per above suggestions.
Advice about skipping versions
Please see Updating_MX_to_new_version#Updating_from_a_very_old_version sub-section later on this page (and preceding sub-sections where relevant)
The important point to make here is that when you do an update, you should copy in ALL files from the release distribution you want to run next. This is because there are dependencies between files within a distribution, so missing out any particular file may stop other files from working. However, if you are skipping versions, read the in-between release announcements to see if there are any one-off actions.
Knowing when a new release is available
Thanks to Billy on support forum for suggesting text for this section.
Using forum notifications
As new releases are announced in Cumulus MX Announcements and Download - PLEASE READ FIRST topic, you can use the spanner tool to subscribe to this topic to receive notifications of a new post announcing a new release (or any other release-related announcement).
MX terminal message
- ...you have a monitor to see the terminal output from the Cumulus MX engine (Windows calls this either a command window, powershell window, or a terminal window depending on how you invoke it, for Unix-based implementations this is the output window when using the terminal functionality), AND
- ...your device running MX is connected to internet, AND
- ...your MONO (if not Windows) is not obsolete (SSL certificate out of date), AND
- ...you restart MX
... then you will see a prompt when a new version of MX is available.
It is worth stressing that if you leave MX running, then this feature will leave you blissfully unaware that an update is available; it only checks when MX is restarted.
In addition ...
- ...if you can view the MXdiags file for the current session of MX, AND
- ... MX is running with connection to the internet, AND
- ...you restart MX
... if a new version of MX is available, the MXDiags file will say so (the message is not easy to spot as there is a lot of output before it, and variation in what output appears before it). Anyway, here is one example, just one example as in my experience the message has appeared at different places for each of the recent updates):
2020-05-27 04:18:48.326 Calculating sunrise and sunset times 2020-05-27 04:18:48.326 Sunrise: 04:58:11 2020-05-27 04:18:48.326 Sunset : 21:19:54 2020-05-27 04:18:48.326 Tomorrow sunrise: 04:57:08 2020-05-27 04:18:48.326 Tomorrow sunset : 21:21:11 2020-05-27 04:18:48.388 You are not running the latest version of CumulusMX, build 3080 is available. 2020-05-27 04:18:48.763 Station type:
There is no message in whatever place it can appear ...
- ... if you are using latest version, OR
- ... if you are not connected to the internet, OR
- ... if you keep MX running all the time!
When the Status option of this script is used, whenever a new release of MX is available, it will output a message.
Dashboard in MX Admin Interface
In recent releases, one of the alarm indicators shown at the bottom of the dashboard page of the administrative interface, will flash red when you are not running latest build, and glow green when there is no newer release compared to the one you are running.
Since 3.7.0 release of MX, two relevant web tags have become available:
- <#NewBuildAvailable> Returns a boolean value
- 0 - MX running the latest build available
- 1 - MX is running an earlier build than the latest public release
- <#NewBuildNumber> Displays the latest public release build number
Where to download a release distribution
Download release distribution zip from the Software article in this Wiki for latest version.
Be aware that the developer needs to remember to update this link each time there is a new release.
An image that contains a Rapberry Pi lite operating system and the latest Cumulus MX release already included, may be downloaded from the same wiki article.
Any release developed by Mark Crossley
Download release distribution zip from https://github.com/cumulusmx/CumulusMX/releases for earlier versions.
What to read (and when) before updating
Updating from immediately preceding build
The release announcement
The release announcement is found in Cumulus MX Announcements and Download - PLEASE READ FIRST topic of the support forum.
- Generally, a release announcement WILL contain
- An overall purpose for that particular release (e.g. fixing bugs or adding functionality)
- Details of what functionality has been added
- Details of what bugs have been fixed, or where the processing has been improved
- (For older releases only) A list of the main files that have been added or amended in the release (excluding "updates.txt" which is amended in each release)
- (Publishing a list of changed files has been discontinued, because people were updating selected files, and often missed crucial ones, like CumulusMX.cfg)
- Sometimes, a release announcement MAY contain
- Descriptions of one-off actions (like changing the schema if you use a database, or editing your web pages to take advantage of new web tags).
- Actual scripts to download and run to perform the necessary one-off actions.
- Be aware that it is worth while checking back on the release announcement for a few days after a release.
- It may have been edited because the original announcement forgot to mention something.
- It may have been edited to mention that some bugs have now been found
- That may mean you are advised to regress to an earlier version and use that
- It might mean that some supporting files in current version are wrong, and you only need to regress those named files
- There might be an emergency release to fix the bugs, and you need to update to that emergency release
- Finally you might be given advice to avoid using certain parts of the functionality or take some other action until the next release is available.
Other places where you can find information about release content
Although it is not always kept in step, a concise summary of all formal MX releases is available at Cumulus_MX_formal_release_versions.
You can also view the latest Updates.txt.
Deciding whether to update to new release
This has been covered earlier in this article, but I repeat here 2 critical considerations:
- Any new development or change in a new version of MX might cause problems for some users. You might want to stick with the version you are already using unless you really need any new functionality or the fixes gained by upgrading.
- Also remember that there are bugs in (almost) all versions of MX, this is a large and complicated package, and the current developer has not been able to test all the code with all possible settings and all possible weather stations.
Updating to a new minor build, skipping in-between minor builds
For a minor version build either the associated version number does not change or only the final section changes (3.x.y to 3.x.z).
Reading multiple release announcements
If you are skipping some intermediate builds, then you will need to read each of the formal release announcements for builds after the build you currently use.
The other sources of release information mentioned above may be consulted as an alternative and may highlight something useful, but the formal release announcement contains what the developer wants you to know.
Action to take when skipping minor intermediate builds
You need to apply the cumulative actions recommended (i.e. apply any actions in sequence as listed for each intermediate build). Unfortunately, for Cumulus MX, one cannot assume that minor builds have no one-off actions associated with them. Luckily, most of the advice above for updating from immediately preceding build still applies.
Updating to a new major version
Generally, if the developer decides a new build warrants classification as a major version (i.e. 3.w.0) then the change being implemented is significant enough that updating might be more complex.
Examples of what might be classified as a major change
- Additions to fields in log files (whilst older lines can continue to be read, you might want to consider amending your standard data log by populating the additional derivatives for older lines)
- Schema changes for database tables (if you don't use the standard tables, this might be irrelevant to you), the standard insert operations by MX can cope with extra columns in a table, but will fail if any column they try to update is missing
- Additions, changes, or removals, in configuration file (in general MX will ignore unrecognised parameters, but it does need correct values for those attributes it does recognise), see release announcements to discover if new lines in configuration file need you to add them manually or you need to use the admin interface to select the right setting for you
- New pages in Administrative Interface (additional pages require menu on every other page to be amended)
- Changes to existing pages in admin interface that involve changes to associated files (it is vital that all associated files are from same build)
- Catering for new weather station sensors, or new ways of communicating (this might not seem relevant to you)
- Any interface functionality changes (it may look the same, but what it does has changed)
- Additions to files being generated for web server (i.e. changes to template files, or additions to web or webfiles folders), even if you use your own versions of such files you may want to check the revisions
What you need to read
- Basically, check the corresponding release announcements for every version since the one you have been using before planning your upgrade.
- Make a note of any one-off actions required at particular in-between versions, remember these actions are only in forum release announcements.
- Although one-off actions will not be described in the Wiki (whether on the Software page or the Cumulus_MX_formal_release_versions page), the Wiki can give you an idea of what functionality has been improved to help you decide whether to update.
- It is still worth reading all the points made above for updating from immediately preceding build.
Doing the upgrade
- Download the release distribution
- Use control-c (or equivalent for MX running as service) to stop your existing MX software
- Backup your existing installation
- Do the on-off actions identified (e.g. changing schema of database tables, adding new configuration
- Unzip the distribution over existing one (alternative installation options listed later)
- Restart MX, considering whether to use -debug parameter in case the new release does not work for you
- Check the latest file in the MXDiags folder after an hour, to see if there have been any problems with reading from station, real-time uploads, standard uploads, or hourly uploads. (You may wish to recheck after an End of Day action has been done).
Updating from a very old version
Many people believe if it works, it don't need fixing. So they install whatever MX version is available when they start using MX and ignore all the bug fixing and new functionality being added, and stick with their existing installation.
Suddenly they realise that perhaps their version does lack functionality that would be useful to them. Maybe their version does not have an editor for correcting rogue extreme records and they realise correcting log files is something that is hard for them to do.
This section is therefore included to give advice on why you should not jump from an old version to the latest directly, but how it can be safely done in stages.
Recommendations for staged updating
This section will need to be updated, new contributors are needed to keep this advice current.
If using 3.0.0 (the MX original beta)
Update to 3.5.1 by downloading it at https://github.com/cumulusmx/CumulusMX/releases/tag/b3072.
This gives you essential new functionality in the admin interface like editors for the log files and extreme records. But it also fixes multiple bugs in the beta you were using and adds some useful validation missing in the beta.
It does not involve any updates to the fields in the log files nor to the columns in any database tables you use.
It skips you past the problems in 3.5.0. It gives you benefits introduced in 3.1.x, 3.2.y, 3.3.z, and 3.4.w releases.
Now follow instructions below, for If using a 3.5.x release
If using either 3.1.x, 3.2.y, 3.3.z, or 3.4.w releases
As above, update to 3.5.1 by downloading it at [Mark's Github respository]. The actual installation is done using the instructions above for simple next build upgrades. You can safely skip reading the intermediate release announcements, as there are no special one-off actions.
When you are happy running 3.5.1, then you should continue to upgrade, initially follow instructions in next sub-section.
If using a 3.5.x release
My advice is to update directly to 3.7.0 available at Mark's Github repository.
You should skip the intermediate releases because several 3.6.y releases have bugs in them, and you want to avoid those problems (the bugs vary in severity between mistakes in calculations done by MX to particular functionality not working).
But there may be additional actions you need to do when moving from 3.5.x to 3.7.y, depending on what features you use in MX:
- there are no additional actions if you use standard web pages and you do not use database tables, just enjoy the bug fixes and extra features after your update!
- If you use database tables, be aware that the schema (Column names that must be in a table) varies between 3.5.x versions and 3.7.y versions.
- The updating database table features in MX will only work if all the columns named in each such upload update already exist in the database table it is trying to update.
- Look at individual release announcements for both 3.6.0 and 3.7.0, to see the SQL provided for adding the columns added at particular versions.
- At 3.6.0 the SQL was provided as a separate attachment to the release announcement (read UpdateMYSQL-b3076.zip)
- At 3.7.0 the SQL was provided as part of the main zip (read AlterSQLTables3098.sql)
- In both cases, the SQL provided assumes you are using the default names for database tables, it does not read Cumulus.ini to see whether you have selected different names for the tables (unlike ExportMySQL.exe and standard CumulusMX.exe uploads which check what tables names you have selected for updates).
- If you have your own customised web pages, then there are changes to web tags that might lead to you needing to edit your web pages.
When you are happy with running 3.7.0, then you should continue to upgrade, and the next sub-section describes what to do next.
if using a 3.7.y release
If you are using 3.7.0 (there were no other builds in 3.7.y series), then you should upgrade directly to version 3.9.6 - build 3101.
Only 3.7.0 was ever released, it introduced a lot of changes, so that is why staged upgrades recommend that this version is implemented, and run for a while, before continuing to upgrade.
Version 3.8.0 was a major release, as it introduced the ability to run Cumulus MX as a service. However, there were bugs in the builds in all 3.8.z versions, and in some 3.9.x versions, so that is why you need to skip through intermediate builds below 3101.
IMPORTANT one-off actions needed:
- There is a one-off change described in v3.9.0 - b3095 release announcement for those using RG-11 rain sensor.
- There is a further on-off change described in release announcement for Patch release 3.9.1 - b3096 for those who use Mono to enable the executables to run.
When you are happy with running version 3.9.6 build 3101, you can continue to upgrade, and that will be covered in subsequent sub-sections (assuming someone is bothered to keep this article up to date).
if using either 3.8.x or 3.9.y release
See previous entry, upgrade directly to 3.9.6, or any later build without any major change.
Recommended Actions when Updating
It is always best to take a backup of your existing MX installation before you do an update, this allows you to regress back to the earlier version if either you mess up installing the new version, or the new version has a issue that prevents it working with the versions of other software (like MONO) that your installation uses.
The two approaches
Contributors to this section are named in text.
Some people upgrade by just copying in the files that the release announcement says have changed, others copy in all files from the downloaded zip. The first should only be used with caution, files like CumulusMX.exe.config can change between versions, but not be mentioned in a release announcement, and the developer will have been making edits to files since the previous release, and might forget exactly which files have been edited between releases. Also you may be upgrading from an earlier version and therefore be skipping several intermediate releases.
You may be able to see the dates when files were changed within the zip and therefore be able to decide for yourself if you compare those dates with the previous release you were using if you have kept the download for the version you were using. However, do not assume that only files with later date are needed; in some releases the new build regresses one or more files and so a file with an older date is the correct one to retain.
The rename old approach
- The popular approach, recommended by many forum contributors, in many different posts (including at this post by Mark Crossley for example is to rename your current install directory, then unzip the new release, letting it create a new CumulusMX folder (or whatever name you prefer and specify in unzip options).
- However, you will find that this option is not being recommended any more, because it relies on you knowing which files (see next 2 points) you need to copy back.
- Copy across Cumulus.ini and (if you use it) string.ini into that new directory, and then copy the contents of the data and Reports directories from your current install to the new install.
- Don't forget to copy any other set-up files across too.
- The advantage (as Mark says) is that you ensure you do use all the files in the new release, and don't miss out any he may have forgotten to mention in his release announcement.
- A key advantage is that you don't retain files that an old release migt have needed but the new release does not use.
- Another advantage (as PaulMy says here for example) is that you retain your old set-up intact and can easily restore it should you have a problem with new release.
- Various people advise that you don't delete your old installation for a week or so; as you may notice something from the older version that you haven't copied across!
- Check again that you copied across (you may not have all of these files, but if you have them in old installation then you need them in new installation) strings.ini, twitter.txt, Cumulus.ini, and similar files in the same folder level as CumulusMX.exe, as well as all the files in the data and Reports sub-folders. Then, provided you are happy, you can delete the old release when you want to reduce clutter on your storage discs.
The overwrite approach
The general advice is that if you want custom pages for the administrative interface, or custom templates to process to produce your web pages, then these custom files should be given different names (and ideally be placed in different folders) to the standard files included in the release distributions. If you follow this advice, the approach described in this sub-section is the best for you, if you don't follow this advice, see later section on dealing with customised files.
- if you have a lot of set-up files, or other custom files, (i.e. files with names that are not part of release), these won't be overwritten by files in the release distribution, but you do want to keep them;
- or if you are downloading on a different computer, or on a different disc, to where you are running MX, it is easiest to keep your MX installation in the same place
- Note the forum administrator, David, (see this post) recommends this particular approach.
- After downloading a new release unzip it on the device/disc where you down load it. Next stop your existing Cumulus MX software and take a backup of your existing installation. After that, simply copy the files (optionally only those that have newer dates because they have changed) into the existing MX directory on the device where you run MX. Then you know all your existing files are there, and your MX can be run as before.
- The great advantage of this approach, and the reason that it is widely recommended as best, is that you can't lose any data or configuration files (i.e. files that are not part of the release distribution).
- Provided you did the backup, the only problem with this approach is that in some releases files are removed from the distribution, yet unless you check carefully, this approach may leave files that are no longer required in your installation, and it is just possible you might continue to use the obsolete file instead of the intended alternative. Such a non-standard installation is difficult for others to support. So do check through file by file to ensure you only have files in the distribution you have just installed, not any from earlier distributions. The only files that you still want (that are not in distribution) will be those that either configure your system or contain your data in log files.
- The updated files can be tracked by their modification date, some will be specified in the release notes (find them on this forum). There is a list indicating what files vary in this Wiki article.
- In general, especially if updating a major release, it is best to overwrite with all files in zip, whether they are listed as changed or not. This ensures you have a consistent set of files, and avoids any issues when the developer does not correctly list all the files that have changed, or a file might be regressed to an earlier version and not have a newer date than the file in your previous installation.
Example: downloading on PC and installing on pi
- On your pc: Download zip either from Software for latest version or from https://github.com/cumulusmx/CumulusMX/releases for earlier versions.
- On your pc: Use Filezilla (or similar file transfer program, or it might even be a copy over network depending on way set up) to transfer zip to pi (e.g. FileZilla CumulusMXDist3089.zip to /home/pi), but remember you might want to install to a different location (perhaps on an external USB drive, or SSD)
- Control C on pi to stop MX
- On pi go to directory where zip now is, for example it might be cd /home/pi
- Unzip the installation over your existing installation, by running on your Raspberry Pi this instruction: unzip -o CumulusMXDist3089.zip
- Restart MX
- Remove any files that were needed by earlier releases but release announcement says are not needed by the release you are installing
The customised approach
If you edit a file that is included in the release distribution, you should give it a different name (e.g. I have placed an underline in front of original file name for some of the files I edited in the admin interface), and/or place it in a different folder (e.g. I place all the cumulus templates I have created in a folder called cumulus_Templates). If you follow this advice, then you won't lose your files by following the advice above, regardless of whether you overwrite or not.
If you won't listen to best practice advice, and have decided to for example modify the provided Cumulus web templates without allocating new names, then installing the whole release distribution will overwrite your edited file(s) with the standard file content provided by the developer. Therefore you need to do a customised approach where you select which files from the distribution to copy into your installation. If you have changed one or more web templates, you might think it safe just to omit the relevant files in the zip within folder web, but some builds change the files in the webfiles folder too, and you need to retain consistency.
Updating when files within release might overwrite your own edits
To further explain the customised approach, here are some more examples.
web site files
If you have edited any files that sit on your web site, then these can remain on your web site. However, if those web pages are generated from templates that you expect MX to process and upload for you, you do need to take special action. Maybe you edited a template to give the look you desire, or the content you want (e.g. adding rain this month to this month page, or combining this month and this year page).
The first step is to see if the release notice says that file has been revised, if it has not then it is easy to keep your edited file by not copying in the replacement file from within the zip. If the release revises any file you previously edited, take a backup of your edited file, before you copy the new file into your folder. You can then use a file comparing tool to see what has changed in the release and what you changed and hopefully manage to merge to a new file that keeps any functionality change in a new release and keeps your customisation. Do think about changing name of the template file, or placing it in a different folder, and using the Extra Files settings. That will make it easier for you next time you do an upgrade to a new MX build.
If you have done major customisation to the standard website then you probably have followed the guidance and stored your new web page templates in a different directory and you use Extra Files to specify where they are, so they cannot be overwritten, and the new MX will still find them. It might be that new web tags have been added since whatever build you were running before, and that you decide to edit your customised template file, but that can be done any time after you install the new MX build.
admin interface files
If you have done any customisation to the interface (perhaps you don't like seeing solar in the tables when you don't measure that) then again you can skip over these files when copying. Hopefully you will have copies of the files that you have customised of the interface folder so you have ability to copy them back into installation if you do overwrite with the release version.
You do have to be careful, as many releases change the interface in some way, even if the change is not in the file you have customised, it might be in an asociated file, and all the various components of the interface have to work together as a coherent unit. For instance when feels like was added to MX, the api used for sending data from the MX engine to the admin interface was updated. In some releases, a new web page is added to the admin interface, with the consequence that all the navigation menus were adjusted in all web pages. Any HTML page in the admin interface may be edited to refer to a different styling page (so it, and the .css file, must be updated together) or to a different script (so the .HTML, and the .js file, must be updated together). The settings pages in the admin interface are dependent on the correct pair of json files to define the options or values that appear on that web page, so again all must be consistent.
To sum up, admin interface files are interdependent, and you cannot always update some, but not all, of the admin interface pages.
Be prepared to go back to the standard file for whatever you customised if something it depends upon has changed, after all you must not lose any vital functionality.
After an update if you use the standard web template files
If you do not use the example web template files, provided as standard, with a MX release, the remainder of this section can be ignored.
If you use the third party CumulusMX and Cumulus1 UI style Multilingual Websites web pages, as maintained by BCJKiwi, follow any instructions in his package as to which of the files in this section are required and any announcements in his forum topic about when such files need to be upgraded.
web folder from zip
If you do use the example web templates to produce web pages for your web server, and you have copied all files from the release distribution ....
....MX will find any new web template files in your web folder, MX will process those template files, and upload the web pages produced, as before with no further action by you.
webfiles folder from zip
PLEASE COULD SOMEONE USING LATEST MX RELEASE ENSURE THIS IS KEPT UP TO DATE
You do need a further action, if any files in this folder have been updated. The updated files must be uploaded to your web site.
This may be easy to forget if you use the standard web templates, because you thought that upload was a one-off and maybe you cannot remember what you did.
Certain third-party web-pages still use files from that folder, if one of the files they use has been updated, then ensure you have a backup of your web site before you upload the updated file, it should work, but it might not, and you might need to regress.
Let me go through the files currently in webfiles folder:
- weatherstyle.css has not been updated since its last update by Steve Loft in 2009.
- subfolder images contains 2 pictures that have stayed same since MX launch
- subfolder js contains one file or two files (depending on which MX release you are using:
- The standard web page trends.htm will only work if the correct version of any file here has been uploaded to your web site, and placed in a sub-folder "js" of where "trends.htm" is installed. .
- The file \CumulusMX\webfiles\js\cumuluscharts.js has changed in a lot of releases, it is updated whenever there is a change in the JSON files used for providing data to the charts, and you must use the right upgrade.
- The file 'historiccharts.js (it was introduced from release 3.8.7) is similar to previous script, but drives the historic chart functionality on your web server
- The standard web page trends.htm will only work if the correct version of any file here has been uploaded to your web site, and placed in a sub-folder "js" of where "trends.htm" is installed. .
- subfolder lib currently contains 3 folders:
- highstock - this folder is no longer needed on your web site (and the most recent MX releases have emptied it)
- jquery - this folder is needed for "trends,htm" to work, but it has not been updated since 2014. Both the files included are obsolete packages, no longer officially available, and there are no plans to replace them.
- steelseries - this folder has 3 sub-folders, I can only think of 2 MX releases when anything was changed here, and I don't anticipate any further changes.
After update - checking for bugs in MX or mistakes in your installation
Start the new installation of MX and watch out for any errors - If the device you run MX on has a monitor, then look in the terminal/command window. In all cases look at the latest file in the MXdiags folder to see if any errors are reported.
In newer releases of MX, also see ServiceConsoleLog.txt
Also keep an eye on the support forum for first few days, some releases do have bugs, as developer cannot test all possible configurations.
Updating if you use a virus Checker
You may find that virus checkers such as Windows Defender reject your new version of MX. They need to be told it is safe.