* lisp/subr.el: (string-common-prefix): New function.

* etc/NEWS:
* doc/lispref/strings.texi:
* doc/lispref/minibuf.texi:
* lisp/emacs-lisp/shortdoc.el:
Documentation.

See https://github.com/joaotavora/eglot/issues/1569.

* lisp/progmodes/eglot.el (eglot--managed-mode): Tweak.

* etc/EGLOT-NEWS: Tweak.

* etc/NEWS: Announce the new customization option (bug#80215).
* lisp/textmodes/yaml-ts-mode.el (yaml-ts-mode): New customization group.
(yaml-ts-mode-yamllint-options): New customization option.
(yaml-ts-mode--flymake-process): New variable that stores the reference
to the flymake process.
(yaml-ts-mode-flymake): New function that implements support for Flymake.

* lisp/progmodes/json-ts-mode.el (json-ts--get-path-at-node)
(json-ts--path-to-jq, json-ts--path-to-python): New functions.
(json-ts-jq-path-at-point): New command for getting JSON path at point.

* test/lisp/progmodes/json-ts-mode-tests.el: New file.
Add tests for the utility command.

* etc/NEWS: Announce new command 'json-ts-jq-path-at-point' (bug#80190).

Can't send prepareRename requests willy-nilly.

See https://github.com/joaotavora/eglot/issues/1554.

* lisp/progmodes/eglot.el (eglot--rename-interactive): Fix.
(eglot-client-capabilities): Advertise "prepareSupport".

* etc/EGLOT-NEWS: Mention change.

See https://github.com/joaotavora/eglot/issues/1569.

* lisp/progmodes/eglot.el (eglot--managed-mode): Stomp on
imenu-create-index-function conditionally.
(eglot-imenu): Don't check eglot-server-capable here.

* etc/EGLOT-NEWS: Mention change.

Some language servers request file watching for a very large number of
directories (e.g. Python virtualenvs), which can exhaust system
resources and cause slow startup.

https://github.com/joaotavora/eglot/issues/1568

* lisp/progmodes/eglot.el (eglot-max-file-watches): New variable.
(eglot--count-file-watches): New function.
(eglot--watch-globs): Use them to limit watches.  Signal jsonrpc-error
when limit is reached.
(eglot-watch-files-outside-project-root): Fix docstring punctuation.

* etc/EGLOT-NEWS: Mention change.

Advertise support for file resource operations in workspace edits.
Implement create, rename, and delete file operations.  Rework
confirmation UI to handle mixed operation types.

* lisp/progmodes/eglot.el (eglot--lsp-interface-alist): Add
CreateFile, RenameFile, DeleteFile interfaces.
(eglot-client-capabilities): Advertise resourceOperations and
failureHandling.
(eglot-handle-request<workspace/applyEdit>): Return failureReason.
(eglot--apply-text-edits): Tweak error message.
(eglot--propose-changes-as-diff): Adjust for new prepared format.
Return buffer.
(eglot--apply-workspace-edit): Rework.  Handle file operations.

* etc/EGLOT-NEWS: Mention change.

The current 2026 landscape suggests servers (especially gopls
and ocamllsp) take advantage of this, so let's give it to them
by default.

* lisp/progmodes/eglot.el (eglot-advertise-cancellation):
Default to t.

* etc/EGLOT-NEWS: Mention change.

The info returned from `garbage-collect` is really handy to
track the evolution of the heap size, but sadly it's available only
at the cost of running a full GC, which has two big downsides:
it's slow, it affects what we're measuring, and it can't be used
in `post-gc-hook`.
So, this patch makes it available without running the GC.

* src/alloc.c (Fgarbage_collect_heapsize): New function, extracted from
`Fgarbage_collect`.
(Fgarbage_collect): Use it.
(syms_of_alloc): defsubr it.

* doc/lispref/internals.texi (Garbage Collection): Extract
documentation for it from that of `garbage-collect`.