---
status: documented
name: Errata
---
# Errata

This chapter records places where the canonical Perl 5 documentation
is wrong, ambiguous, or stale, together with what each PetaPerl
runtime actually does. Each entry has the same shape:

1. **Upstream wording** - the relevant text from the official
   `perl5-upstream/pod/` source, quoted verbatim.
2. **Correction** - what the documentation should say, established
   from upstream's own C source and from empirical probing.
3. **pperl behavior** - what `pperl` does. Where this differs from
   upstream perl5, the divergence is flagged and tracked.

The goal of this chapter is operational, not editorial: if a user
hits surprising behavior around one of these topics, they should
find an answer here and know which runtime they are running.

```{toctree}
:maxdepth: 1

identifier-length
```