Waaaaaaay back in September, I wrote:
I maintain findbugs, whose latest version needs jakarta-commons-lang
2.4. We currently ship 2.3. The upstream release notes  claim
that 2.4 has no incompatibilities with 2.3. On the other hand, I see
that jpackage (5.0) has both a jakarta-commons-lang (version 2.3)
package and a jakarta-commons-lang24 package, but I don't know why.
Every once in awhile during the last few months, I've toyed with
upgrading jakarta-commons-lang from 2.3 to 2.4. Unfortunately, Fedora
is still missing multiple POMs needed to build with maven. Today, I
figured that I didn't want to see yet another Fedora release go by
with us still shipping version 2.3, so I updated (Rawhide only) and
built with ant.
If anything breaks as a result of this, you now know at whom to hurl
the rocks. Seriously, though, if there are any problems, please let
me know and I will do my best to fix them.