Update ChangeLog and README files

ChangeLog

@@ -1,3 +1,29 @@
+Version 1.2.27 (March 5, 2023)
+------------------------------
+
+- Fix category filter when the category name is a number
+- Better handling of max file upload size according to PHP settings
+ - Allow unlimited size
+ - Better parsing of PHP size
+- Add dropdown menu on the board to reorder tasks by ID
+- Separate `font-family` specification for input and textarea. This avoids the use of `!important` in custom CSS
+- Change the total number of tasks displayed in the table header to match the description "Total number of tasks in this column across all swimlanes"
+- Allow full name to be retrieved by the reverse proxy authentication
+- Fix `pull-right` CSS class alignment
+- Use a separate dropdown menu for column sorting
+- Use `assertEqualsWithDelta()` to test `time_spent`
+- Add `color_id` argument to tag API procedures
+- Update task time spent/estimated when removing a subtask
+- Command `db:migrate` should work even if `DB_RUN_MIGRATIONS` is false
+- Always trim the username before saving changes in the database
+- Avoid Postgres SQL error when using project filter with a large integer
+- Enable Sqlite WAL mode by default:
+ - WAL provides more concurrency as readers do not block writers and,
+ a writer does not block readers. Reading and writing can proceed concurrently.
+ This change might reduce the number of errors related to locked databases.
+- Update translations
+- Update PHP dependencies: `phpunit/phpunit`, `symfony/stopwatch` and `symfony/finder`
+
 Version 1.2.26 (January 14, 2023)
 ---------------------------------
 

README.md

@@ -3,8 +3,19 @@ Kanboard
 
 Kanboard is project management software that focuses on the Kanban methodology.
 
-**This application is feature complete**.
-Pull Requests for NEW features and fixes are accepted as long as the [guidelines](.github/pull_request_template.md) are followed.
+**This application is in maintenance mode**. What does it mean?
+
+Citing [Wikipedia](https://en.wikipedia.org/wiki/Maintenance_mode):
+
+> In the world of software development, maintenance mode refers to a point in a computer program's life when it has reached all of its goals and is generally considered to be "complete" and bug-free. The term can also refer to the point in a software product's evolution when it is no longer competitive with other products or current with regard to the technology environment it operates within.
+
+- The [author](#credits) of this application is not actively developping any major new features (only small fixes)
+- This software is not dead (yet)
+- New releases are published regularly depending on the contributions made by the community
+- Pull requests for new features and bug fixes are accepted as long as the [guidelines](.github/pull_request_template.md) are followed
+
+Table of Contents
+-----------------
 
 - Official website: <https://kanboard.org/>
 - [List of features](https://kanboard.org/#features)