Preparing for pkgsrc-2026Q2 - entering careful period 2

Hi all,

In the hopes of having a successful 2026Q2, we now have restrictions on
riskier package changes. Please request approval for the following types
of changes:

- rust

- firefox

- gtk3

- wayland

- cmake

- non-micro updates to pbulk, distcc, ccache, and similar things that
  have non-trivial use to build packages at scale

- non-micro updates to widely-used non-versioned languages (e.g. perl
  5.X->5.X+1, ocaml)

- changing the default version of versioned languages and systems (e.g.
  go, guile, php, python, ruby, postgresql, mysql)

- non-micro updates to packages with more than 500 (recursive)
  dependencies

The restrictions from the previous period still apply:

- any package always needing approval (boost, gmake, qt5, qt6) - the
  standard answer will be wait until after the branch

- any change in mk that is intended to result in build failures
  (typically for things that were warnings before)

- clang/llvm (New versions almost always are backwards incompatible.)

- poppler* (frequent API changes)

- Any package with a history of a troubled update in the last 3 years:
  - glib2
  - py-sip6

The list of restrictions is documented in https://pkgsrc.org/quarterly/
(and can be discussed if you want to make changes to it).
This is not a pkgsrc freeze, that will start on the weekend of June
13/14.

Thanks for working on pkgsrc,
Maya