Track seconds instead of days for "days since" dimensions (#15774)

* Modify dimensions and add tests.

* unfinished debugging commit

* changes to fix test, remove tracker code, add update code

* fix some tests

* fix migration issue

* fixing some tests

* fix some bugs, update some expected test files, remove _idvc from some tests

* start replacing _ects

* Finish seconds since last ecommerce order change.

* fix couple issues

* fix a couple tests

* fix some more tests

* fixing a couple more tests

* apply review feedback

* unfinished commit

* add back dimensions =

* fixing tests & removing some code

* fix some bugs + tests and remove debugging code

* fixing some tests and issues

* Some debugging code for the tracker in case of exceptions.

* debug and fix another issue when tracking visits in the past

* fix test

* update JS and fix several tests

* Fixing more tests.

* Add missing files.

* update expected test files

* Add some unit tests.

* update more expected files

* update more test files

* update more test files

* update changelog and remove _ects query param

* apply review feedback

* fix merge issue

* clearer code

* fix migration issue

* update expected files

* update expected files again

* updating tests

* fix test

* rebuilt piwik.js

* unify previous visitor properties / original visit row approach

* fixing some tests

* Add new column version entries into the option table.

* try undoing 1.5 update change

* apply review feedback

* remove more unused cookie values

* rebuilt piwik.js

* Fix test count.

* update test files

* rebuilt piwik.js

* removel log analytics submodule update

* update submodule

* update some expected screenshots

* Fix versions in omnifixture since we were probably adding to the beta update after it changed.

* update screenshots

1 files changed, 4 insertions, 1 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2cc9595b08..058bcbb067 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -75,7 +75,7 @@ The following changes are recommendations and don't have to be done as we will s
 * The event `LanguageManager.getAvailableLanguages` has been removed. Use `LanguagesManager.getAvailableLanguages` instead.
 * The `$completed` parameter for the 'CronArchive.archiveSingleSite.finish' event has been removed. For both this event and the CronArchive.archiveSingleSite.start event, a new
   parameter is added for the process' pid. Multiple processes can now trigger this event for the same site ID.
-  
+
 #### Removed methods and constants in PHP Plugin API
 
 * The method `\Piwik\Plugin::getListHooksRegistered()` has been removed. Use `\Piwik\Plugin::registerEvents()` instead
@@ -136,6 +136,9 @@ The following changes are recommendations and don't have to be done as we will s
 * The dimension and `log_link_visit_action` column interaction_position has been renamed to pageview_position. If your database queries rely on the column you can simply replace the name.
 * The metric (avg.) page generation time has been deprecated. It is no longer possible to track it. Already tracked values will still be shown in old reports. More detailed performance metrics are now available in PagePerformance plugin.
 * Added support for campaign name parameter `matomo_campaign` / `mtm_campaign` and campaign keyword parameter `matomo_kwd` / `mtm_kwd`
+* The following dimensions have been removed and replaced with versions that measure seconds: visitor_days_since_first, visitor_days_since_last, visitor_days_since_order
+* The _idvc, _idts, _viewts and _ects tracker parameters are no longer used, the values are calculated server side.
+  Note: tracking these values server side means replaying log data in the past will result in inaccurate values for these dimensions.
 
 ## Matomo 3.13.6