Deprecation Notice: v2 schema

[pd93]

This issue serves as a notification for the deprecation of Taskfiles using version 2 of the schema. This schema was introduced in March 2018 and replaced by version 3 in August the following year. Users have had a long time to update and so we feel that it is time to tidy up the codebase and focus on new functionality instead.

This notice does not mean that we are immediately removing support for version 2 schemas. However, support will not be extended to future major releases and we strongly recommend that anybody still using a version 2 schema upgrades to version 3 as soon as possible.

A list of changes between version 2 and version 3 are available in the Task v3 Release Notes.

This issue should remain open until all version 2 related code is removed and any PRs should be linked back here.

[pd93]

Closing as support for the version: 2 schema was removed in #1447. The last version of Task to support the old schema is v3.33.0.