Agda 2.6.4.3 has been released to replace the deprecated 2.6.4.2. Changes over Agda 2.6.4.2 are two fixes: - [Issue #7148](https://github.com/agda/agda/issues/7148): Regression in 2.6.4.2 concerning `with` - [Issue #7150](https://github.com/agda/agda/issues/7150): Regression in 2.6.4 in `rewrite` with instances # GHC supported versions Agda 2.6.4.3 has been tested with GHC 9.8.1, GHC 9.6.4, 9.4.8, 9.2.8, 9.0.2, 8.10.7, 8.8.4 and 8.6.5 on Linux, macOS and Windows. # Installation Agda 2.6.4.3 can be installed using cabal-install or stack: 1. Getting the release candidate $ cabal get https://hackage.haskell.org/package/Agda-2.6.4.3/Agda-2.6.4.3.tar.gz $ cd Agda-2.6.4.3 2. a. Using cabal-install $ cabal install -f +optimise-heavily -f +enable-cluster-counting 2. b. Using stack $ stack --stack-yaml stack-a.b.c.yaml install --flag Agda:optimise-heavily --flag Agda:enable-cluster-counting replacing `a.b.c` with your version of GHC. The flags mean: - optimise-heavily: Turn on extra optimisation for a faster Agda. Takes large resources during compilation of Agda. - enable-cluster-counting: Enable unicode clusters for alignment in the LaTeX backend. Requires the ICU lib to be installed and known to pkg-config. These flags can be dropped from the install if causing trouble. # Standard library You can use standard library v1.7.3, v2.0 or the `master` branch of the standard library with Agda 2.6.4.3. This branch is available at https://github.com/agda/agda-stdlib/ # Fixed issues over Agda 2.6.4.2 https://hackage.haskell.org/package/Agda-2.6.4.3/changelog Enjoy Agda! Report problems and regressions to: https://github.com/agda/agda/issues Andreas, on behalf of the Agda Developers