fix: v1 deprecation (#755)

Author: ajewellamz

CHANGELOG.md

@@ -1,5 +1,16 @@
 # Changelog
 
+## 1.9.2 -- 2022-08-30
+
+Deprecation
+-----------
+* This major version (1.x) of the AWS Encryption SDK for C has reached End-of-Support. It will no longer receive security updates or bug fixes. Consider updating to the latest version of the AWS Encryption SDK.
+
+Features
+--------
+* Warn on usage
+
+
 ## 1.9.1 -- 2021-10-20
 
 ### Maintenance

CMakeLists.txt

@@ -51,7 +51,7 @@ set(PROJECT_NAME aws-encryption-sdk)
 # Version number of the SDK to be consumed by C code and Doxygen
 set(MAJOR 1)
 set(MINOR 9)
-set(PATCH 1)
+set(PATCH 2)
 
 # Compiler feature tests and feature flags
 set(USE_ASM TRUE

source/session.c

@@ -70,6 +70,11 @@ int aws_cryptosdk_session_reset(struct aws_cryptosdk_session *session, enum aws_
 
 static struct aws_cryptosdk_session *aws_cryptosdk_session_new(
     struct aws_allocator *allocator, enum aws_cryptosdk_mode mode) {
+    fprintf(
+        stderr,
+        "WARNING: This major version (1.x) of the AWS Encryption SDK for C has reached End-of-Support.\n"
+        "It will no longer receive security updates or bug fixes.\n"
+        "Consider updating to the latest version of the AWS Encryption SDK.\n");
     struct aws_cryptosdk_session *session = aws_mem_acquire(allocator, sizeof(struct aws_cryptosdk_session));
 
     if (!session) {