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# Release X.Y (202?-??-??)
* Commands which take installables on the command line can now read them from the standard input if
passed the `--stdin` flag. This is primarily useful when you have a large amount of paths which
exceed the OS arg limit.
* The `nix-hash` command now supports Base64 and SRI. Use the flags `--base64`
or `--sri` to specify the format of output hash as Base64 or SRI, and `--to-base64`
or `--to-sri` to convert a hash to Base64 or SRI format, respectively.
As the choice of hash formats is no longer binary, the `--base16` flag is also added
to explicitly specify the Base16 format, which is still the default.
* The special handling of an [installable](../command-ref/new-cli/nix.md#installables) with `.drv` suffix being interpreted as all of the given [store derivation](../glossary.md#gloss-store-derivation)'s output paths is removed, and instead taken as the literal store path that it represents.
The new `^` syntax for store paths introduced in Nix 2.13 allows explicitly referencing output paths of a derivation.
Using this is better and more clear than relying on the now-removed `.drv` special handling.
For example,
```shell-session
$ nix path-info /nix/store/gzaflydcr6sb3567hap9q6srzx8ggdgg-glibc-2.33-78.drv
```
now gives info about the derivation itself, while
```shell-session
$ nix path-info /nix/store/gzaflydcr6sb3567hap9q6srzx8ggdgg-glibc-2.33-78.drv^*
```
provides information about each of its outputs.
* The experimental command `nix describe-stores` has been removed.
* Nix stores and their settings are now documented in [`nix help-stores`](@docroot@/command-ref/new-cli/nix3-help-stores.md).
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