ANNOUNCEMENT FOR INTEXGRAL v4.3.0
                             (2026-09-18)

Changes
----------------
Added
- Macro `\antideriv`.
- Keys `delim`, `limits`, `big`, `Big`, `bigg`, `Bigg` and `auto` for `\antideriv`.

Fixed
- Issue with `defaultvar` (isssue #20).

Changed
- `defaultvar` can now accept `none` as a value.

Deprecated
- Key `novar`.