Release commit for v1.5.6 (#358)

Add release notes for v1.5.6.

Signed-off-by: David Enyeart <[email protected]>

lib/metadata/version.go

@@ -29,7 +29,7 @@ const (
 
 // Version specifies fabric-ca-client/fabric-ca-server version
 // It is defined by the Makefile and passed in with ldflags
-var Version = "1.5.5"
+var Version = "1.5.6"
 
 // GetVersionInfo returns version information for the fabric-ca-client/fabric-ca-server
 func GetVersionInfo(prgName string) string {

release_notes/v1.5.6.md

@@ -0,0 +1,48 @@
+v1.5.6 Release Notes - March 31, 2023
+=====================================
+
+v1.5.6 provides the following updates for Fabric CA:
+
+- Builds native arm64 CA binaries for linux and darwin
+- Builds multi-platform CA docker images for arm64 and amd64 with `buildx`
+- Builds CA docker images FROM ubuntu:20.04 (avoid SIGSEGV errors encountered with dynamic builds on musl/alpine libc)
+- Adds debug information for a mysterious [idemix error message](https://github.com/hyperledger/fabric-ca/pull/339)
+- Bumps Go version to 1.20.2
+
+Dependencies
+------------
+
+Fabric CA v1.5.6 has been tested with the following dependencies:
+- Go 1.20.2
+- Ubuntu 20.04 (for Docker images)
+
+
+Changes, Known Issues, and Workarounds
+--------------------------------------
+
+None.
+
+Known Vulnerabilities
+---------------------
+- FABC-174 Commands can be manipulated to delete identities or affiliations
+
+  This vulnerability can be resolved in one of two ways:
+
+    1) Use HTTPS (TLS) so that the authorization header is not in clear text.
+
+    2) The token generation/authentication mechanism was improved to optionally prevent
+       token reuse. As of v1.4 a more secure token can be used by setting environment variable:
+
+  FABRIC_CA_SERVER_COMPATIBILITY_MODE_V1_3=false
+
+  However, it cannot be set to false until all clients have
+  been updated to generate the more secure token and tolerate
+  FABRIC_CA_SERVER_COMPATIBILITY_MODE_V1_3=false.
+  The Fabric CA client has been updated in v1.4 to generate the more secure token.
+  The Fabric SDKs will be updated by v2.0 timeframe to generate the more secure token,
+  at which time the default for Fabric CA server will change to:
+  FABRIC_CA_SERVER_COMPATIBILITY_MODE_V1_3=false
+
+Resolved Vulnerabilities
+------------------------
+None.