perlbrew ignoring minor version upgrade

Question

I am using perlbrew (App::perlbrew/0.67) on OS X 10.9

If I list the current installed Perl versions I get

$ perlbrew list
* perl-5.18.1 (5.18.2)
$ perl --version

This is perl 5, version 18, subversion 2 

So it seems that I have version 5.18.2 installed but listed as 5.18.1 (with the correct number in brackets)

$ perlbrew available
perl-5.19.11
perl-5.18.2
perl-5.16.3
...

perlbrew available is listing 5.18.2 (with 2). Is this normal or do I have a broken installation? Why does list show two versions (--help and the manual on CPAN do not show any hint).

Answer 1

perl-5.18.1 is just an arbitrary name. You sure picked a weird one for an install of 5.18.2!

This is my list on one machine:

  5.8.9                  # 5.8.9
  5.8.9d                 # Debugging build of 5.8.9
  5.14.2                 # 5.14.2
  feed_fetcher (5.14.2)  # Used by specific project
  5.16.3t                # Threaded build of 5.16.3
* 5.18.0t                # Threaded build of 5.18.0
  latest (5.18.0)        # An (outdated) alias

Unfortunately, you can't fix this by simply renaming the directory. You can do perlbrew install 5.18.2 to install 5.18.2 as 5.18.2, make sure it works, then delete $PERLBREW_ROOT/perls/5.18.1.

---

If you plan on upgrading a build using upgrade-perl, create it as follows:

perlbrew install --as 5.18 5.18.0

You'd switch to that install using

perlbrew use 5.18        # This shell only
perlbrew switch 5.18     # Switch default

That way, the name will still make sense after you issue perlbrew upgrade-perl.