Merge branch 'hotfix/3.6.3'.

Merge branch 'hotfix/3.6.2'.

Merge branch 'hotfix/3.6.1'.

Merge branch 'release/3.6.0' into master.

Merge branch 'release/3.5.2' into master.

Merge branch 'release/3.5.1' into master.

Merge branch 'release/3.5.0'.

Merge branch 'hotfix/3.4.5'.

Merge branch 'release/3.4.4'.

Merge branch 'hotfix/3.4.3'.