# [Rd] Convenience Request: Add revision numbers to "What's New" change list

Duncan Murdoch murdoch@dunc@n @end|ng |rom gm@||@com
Tue Jul 19 12:56:05 CEST 2022

On 19/07/2022 5:42 a.m., Avraham Adler wrote:
> Hello.
>
> When deciding whether or not to update an R installation—either
> patched or devel—I think it would be valuable to see the revisions in
> which the updates/patches were applied. For those with linked PRs, if
> one has a Bugzilla account, one can often find the revision in the
> final note; however, not everyone has a Bugzilla account. This is a
> very minor request, of course, solely a quality-of-life issue, but I
> think it would be appreciated.

I think that would be hard; news entries often corresponds to multiple
revisions as bugs are found and fixed. But there are ways to see what's
happening.

One is to watch the daily report of changes to the NEWS file at

(These are RSS feeds, but you can also just click on a version to view
all changes on a web page.)

You can also use "svn blame" for this.  For example,

$svn blame doc/NEWS.Rd | less 72400 murdoch % -*- coding: utf-8 -*- 72400 murdoch \newcommand{\Rlogo}{\if{html}{\figure{../../html/Rlogo.svg}{op tions: class="toplogo" alt="[R logo]"}}\if{latex}{\figure{Rlogo.pdf}{options: wi dth=0.5in}}} 72400 murdoch 72400 murdoch \name{NEWS} 72400 murdoch \title{R News} 72400 murdoch \encoding{UTF-8} 72400 murdoch 78213 maechler \section{\Rlogo CHANGES IN R-devel}{ 81992 ripley \subsection{SIGNIFICANT USER-VISIBLE CHANGES}{ 81987 ripley \itemize{ 82459 ripley \item Calling \code{&&} or \code{||} with LHS or (if evaluated) RHS of 82459 ripley length greater than one is now always an error, with a report of 82459 ripley the form 82445 ripley \preformatted{ 'length = 4' in coercion to 'logical(1)'} 82265 ripley 82445 ripley Environment variable \env{_R_CHECK_LENGTH_1_LOGIC2_} no longer has 82445 ripley any effect. This shows that the news item for the top entry "Calling \code{&&} or \code{||} with LHS or ..." was most recently edited in r82459, with an earlier edit in r82445. I'd guess the latter rev is the one you want; here's what the log shows for it:$ svn log -v -r82445
------------------------------------------------------------------------
r82445 | ripley | 2022-06-02 05:56:18 -0400 (Thu, 02 Jun 2022) | 1 line
Changed paths:
M /trunk/doc/NEWS.Rd
M /trunk/doc/manual/R-ints.texi
M /trunk/src/include/Defn.h
M /trunk/src/main/coerce.c
M /trunk/src/main/errors.c
M /trunk/src/main/eval.c
M /trunk/src/main/logic.c
M /trunk/tests/reg-tests-1d.R

remove _R_CHECK_LENGTH_1_LOGIC2_

but it also shows that it is often the case that changes are made in
multiple steps.

Duncan Murdoch