Please see https://sourceforge.net/p/tikiwiki/code/HEAD/tree/trunk/changelog.txt Over 100 000 lines!
Please note that the changelog is only updated at release time.
Also see:
- Tiki20
- Tiki19
- Tiki18
- Tiki17
- Tiki16
- Tiki15
- Tiki14
- Tiki13
- Tiki12
- Tiki11
- Tiki10
- Tiki9
- Tiki8
- Tiki7
- Tiki6
- Tiki5
- Tiki4
- Tiki3
- Tiki2