The compression algorithm `zstd` brings faster compression and decompression, 
while maintaining a compression ratio comparable with `xz`. This will speed up 
package installation with `pacman`, without further drawbacks.

The imminent release of **pacman 5.2** brings build tools with support for 
compressing packages with `zstd`. To install these packages you need 
`libarchive` with support for zstd, which entered the repositories in September 
2018. In order for `zstd` compressed packages to be distributed, we require all 
users to have updated to at least **libarchive 3.3.3-1**. You have had a year, 
so we expect you already did update. Hurry up if you have not.

If you use custom scripts make sure these do not rely on hardcoded file 
extensions. The `zstd` package file extension will be `.pkg.tar.zst`.

URL: /news/from-arch-required-update-to-recent-libarchive/
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