http-date-0.0.13: ChangeLog.md

# ChangeLog for http-date

## 0.0.13

* `epochTimeToHTTPDate` runs in constant time. A huge value took
  minutes.
* `formatHTTPDate` renders out-of-range numeric fields as underscores
  instead of non-digit characters.
* `parseHTTPDate` accepts the RFC 850 and asctime formats, and rejects
  trailing garbage and dates which do not exist. Trailing whitespace
  is ignored.
* `httpDateToUTC` clips out-of-range fields instead of wrapping them
  and keeps a leap second. New `httpDateToUTCValid` rejects them.
* GHC 9.2 or later is required.

## 0.0.12

* Security: `formatHTTPDate` read outside its tables if `hdMonth` or
  `hdWkday` was out of range (a huge value could crash). Such values
  are now rendered as `___`.
* `epochTimeToHTTPDate` with a negative value spent a lot of CPU
  time and returned a wrong date. It now returns the correct date.