Changes since version 2.3-dev8 :

Amaury Denoyelle (8):
      MINOR: mux-h2: register a stats module
      MINOR: mux-h2: add counters instance to h2c
      MINOR: mux-h2: add stats for received frame types
      MINOR: mux-h2: report detected error on stats
      MINOR: mux-h2: count open connections/streams on stats
      BUG/MINOR: server: fix srv downtime calcul on starting
      BUG/MINOR: server: fix down_time report for stats
      BUG/MINOR: lua: initialize sample before using it

Emmanuel Hocdet (1):
      BUG/MEDIUM: ssl: OCSP must work with BoringSSL

Ilya Shipitsin (2):
      BUILD: ssl: more elegant OpenSSL early data support check
      CI: github actions: update h2spec to 2.6.0

Remi Tricot Le Breton (1):
      MINOR: cache: Store the "Last-Modified" date in the cache_entry

Remi Tricot-Le Breton (6):
      MINOR: cache: Process the If-Modified-Since header in conditional requests
      MINOR: cache: Create res.cache_hit and res.cache_name sample fetches
      MINOR: cache: Add Expires header value parsing
      MINOR: ist: Add a case insensitive istmatch function
      BUG/MINOR: cache: Manage multiple values in cache-control header value
      BUG/MINOR: cache: Inverted variables in http_calc_maxage function

Tim Duesterhus (1):
      BUG/MINOR: cache: Check the return value of http_replace_res_status

William Dauchy (1):
      CLEANUP: http_ana: remove unused assignation of `att_beg`

Willy Tarreau (2):
      BUG/MINOR: log: fix memory leak on logsrv parse error
      BUG/MINOR: log: fix risk of null deref on error path