HeidiSQL

## [12.21](https://github.com/HeidiSQL/HeidiSQL/compare/v12.21-Windows..v12.21) - 2026-08-03

### ⛰️ Features

- Create opt-in option for displaying columns in database tree - ([f492bed](https://github.com/HeidiSQL/HeidiSQL/commit/f492bedf917252daa51e23902769a377d21f33a6))
- Enhance order of items in completion proposal, so exact matches are at the top - ([c1b817b](https://github.com/HeidiSQL/HeidiSQL/commit/c1b817b2e9795caa6149fd08a594f79f6a9c4ffb))
- For keyboard navigation on the completion proposal, wrap around the item list - ([db952f8](https://github.com/HeidiSQL/HeidiSQL/commit/db952f87a7123492aafd3461c91310efd8e45754))
- First attempt to create a user manager for PostgreSQL - ([f0d7103](https://github.com/HeidiSQL/HeidiSQL/commit/f0d7103a71f82263471c9a4490d045a8d233fa41))
- Show index icons on columns in tree, and the data type text color - ([e6e90aa](https://github.com/HeidiSQL/HeidiSQL/commit/e6e90aac435a84a99b0e873bcdd7fe54f796831f))
- Auto-adjust width of various combo boxes - ([ca9b748](https://github.com/HeidiSQL/HeidiSQL/commit/ca9b748cf003e357f054c67a64f2d82ba4ebad76))
- Show table columns in tree, as child nodes - ([0e20e70](https://github.com/HeidiSQL/H