Update CHANGELOG.md

CHANGELOG.md

@@ -4,6 +4,7 @@ NOTE:
 
 ## Table of contents
 
+- [v1.1.0-alpha.1](#v110---alpha1)
 - [r1.3](#r13)
 - [r1.2 - rc](#r12---rc)
 - [r1.1 - rc](#r11---rc)
@@ -23,6 +24,26 @@ The below sections record the changes for each API version in each (pre-)release
 
 NOTE: SimpleEdgeDiscovery is part of the EdgeCloud API family, and was previously developed within the [EdgeCloud](https://github.com/camaraproject/EdgeCloud) repository. Two releases were made within EdgeCloud, v0.81 and r0.9.3-rc. These releases also include the other EdgeCloud APIs and materials, so the changelog below highlights only the changes related to SimpleEdgeDiscovery. Further information and links to the releases in EdgeCloud can be found below.
 
+# v1.1.0-alpha.1
+
+This alpha pre-release contains the definition and documentation of
+* simple-edge-discovery v1.1.0-alpha.1
+
+The API definition(s) are based on
+* Commonalities 0.5.0-alpha.1 (r2.1)
+* Identity and Consent Management v0.3.0-alpha.1 (r2.1)
+
+It contains the following changes compared to the last public release [r1.3](#r13)
+
+### Changed
+All changes are to align with Commonalities 0.5.0-alpha.1
+* Error names and structures updated
+* `security` component updated
+* `x-camara-commonalities` version updated
+* Template text for identifying devices updated
+* Test guidelines updated to incorporate changed errrors.
+* New API Readiness checklist used and updated
+
 # r1.3
 
 This release contains the definition and documentation of