Merge branch '5.19' into 5.19.0-releasenotes-initial

diff --cc release-notes.md
index 4325ef763f1f6326207d3bbf5ec5a9a64fed2e06,7534552e0a46b79886f7a997232e5b4f5f6e23ad..a5089d72c0e10e7eb5132ad6082e0b8774627ee7
--- 1/release-notes.md
--- 2/release-notes.md
+++ b/release-notes.md
@@@ -15,17 -15,15 +15,27 @@@ Other resources for identifying change
      * https://github.com/civicrm/civicrm-joomla
      * https://github.com/civicrm/civicrm-wordpress
  
++
 +## CiviCRM 5.19.0
 +
 +Released November 6, 2019
 +
 +- **[Synopsis](release-notes/5.19.0.md#synopsis)**
 +- **[Features](release-notes/5.19.0.md#features)**
 +- **[Bugs resolved](release-notes/5.19.0.md#bugs)**
 +- **[Miscellany](release-notes/5.19.0.md#misc)**
 +- **[Credits](release-notes/5.19.0.md#credits)**
 +- **[Feedback](release-notes/5.19.0.md#feedback)**
 +
+ ## CiviCRM 5.18.3
+ 
+ Released October 15, 2019
+ 
+ - **[Synopsis](release-notes/5.18.3.md#synopsis)**
+ - **[Bugs resolved](release-notes/5.18.3.md#bugs)**
+ - **[Credits](release-notes/5.18.3.md#credits)**
+ - **[Feedback](release-notes/5.18.3.md#feedback)**
+ 
  ## CiviCRM 5.18.2
  
  Released October 9, 2019