dev/core#562 - Remove dao->free from api

[civicrm-core.git] / release-notes / 5.4.0.md

diff --git a/release-notes/5.4.0.md b/release-notes/5.4.0.md
index e248eb9b2e43b31498a42b310c799e559d2fb086..c24fe772918dcfdd7e9a3f9dfa1375755d8709bc 100644 (file)
--- a/release-notes/5.4.0.md
+++ b/release-notes/5.4.0.md
@@ -56,10 +56,19 @@ Released August 1, 2018
   [12389](https://github.com/civicrm/civicrm-core/pull/12389), and
   [215](https://github.com/civicrm/civicrm-packages/pull/215))**
 
-  Sites using Redis or Memcache for caching will now use those facilities
-  exclusively rather than retaining the `civicrm_cache` table as a backstop.
-  This improves performance for these sites, especially those using multiple
-  MySQL servers.
+  Sites using Redis or Memcache for caches and sessions will now use those
+  facilities exclusively rather than retaining the `civicrm_cache` table as
+  a backstop.  This improves performance for these sites, especially those
+  using multiple MySQL servers.
+
+  As a precaution, Redis or Memcache administrators with very active sites
+  may wish to double-check that they have ample capacity for their caches and
+  sessions.
+
+  For developers, the `CRM_Utils_Cache` APIs now support expiration/TTL
+  times and [PSR-16 CacheInterface](https://www.php-fig.org/psr/psr-16/).
+  The Civi implementation is slightly more permissive than the PSR-16
+  specification; for full compliance, enable `CIVICRM_PSR16_STRICT`.
 
 - **[CRM-21574](https://issues.civicrm.org/jira/browse/CRM-21574) Allow to
   disable sending of email from source contact for tell a friend on pcp
@@ -225,11 +234,11 @@ Released August 1, 2018
 
 - **[dev/core#284](https://lab.civicrm.org/dev/core/issues/284) Aggressive cache
   clearing significantly increases test time
-  ([12590](https://github.com/civicrm/civicrm-core/pull/12590)) (partial work)**
+  ([12590](https://github.com/civicrm/civicrm-core/pull/12590))**
 
   Settings, compiled Javascript, extension, and other caches are now only
-  flushed along with the main CiviCRM cache if an external cache like Redis or
-  Memcache is in use.
+  flushed along with the `default` CiviCRM cache if an external cache like Redis or
+  Memcache is in use. (This reproduces the `5.3` behavior.)
 
 - **[dev/core#279](https://lab.civicrm.org/dev/core/issues/279) When Merging two
   contacts, Flip between original and duplicate link not working in WordPress