Update max and min supported versions post OTP 26 and Elixir 1.16 rel…

…eases (#256)

* Update max and min supported versions post OTP 26 and Elixir 1.16 releases

.github/elixir-test-matrix.json

@@ -1,33 +1,29 @@
 {
   "otp_version": [
-    "26.1.2",
-    "23.3.4.19"
+    "26.2.1",
+    "25.3.2.8",
+    "24.3.4.15"
   ],
   "elixir_version": [
-    "1.15.7",
-    "1.11.4"
+    "1.16.0",
+    "1.14.5"
   ],
   "rebar3_version": [
-    "3.20.0"
+    "3.22.1"
   ],
   "os": [
     "ubuntu-20.04"
   ],
   "include": [
     {
-      "elixir_version": "1.15.7",
-      "otp_version": "26.1.2",
+      "elixir_version": "1.16.0",
+      "otp_version": "26.2.1",
       "check_formatted": true
-    }
-  ],
-  "exclude": [
-    {
-      "elixir_version": "1.15.7",
-      "otp_version": "23.3.4.19"
     },
     {
-      "elixir_version": "1.11.4",
-      "otp_version": "26.1.2"
+      "elixir_version": "1.12.3",
+      "otp_version": "24.3.4.15"
     }
-  ]
+  ],
+  "exclude": []
 }

.github/erlang-test-matrix.json

@@ -1,5 +1,5 @@
 {
-  "otp_version": ["26.1.2", "25.3.2.7", "24.3.4.14", "23.3.4.19"],
-  "rebar3_version": ["3.20.0"],
+  "otp_version": ["26.1.2", "25.3.2.8", "24.3.4.15"],
+  "rebar3_version": ["3.22.1"],
   "os": ["ubuntu-20.04"]
 }

README.md

@@ -15,6 +15,8 @@
       •  
     <a href="propagators/">Propagators<a/>
     &nbsp;&nbsp;&bull;&nbsp;&nbsp;
+    <a href="utilities/">Utilities<a/>
+    &nbsp;&nbsp;&bull;&nbsp;&nbsp;
     <a href="examples/">Examples<a/>
   </strong>
 </p>
@@ -25,7 +27,7 @@
 
 ## About this project
 
-This is a repository for OpenTelemetry Erlang & Elixir contributions that are not part of the
+This is a repository for OpenTelemetry Erlang & Elixir contribution libraries that are not part of the
 [core repository](https://github.com/open-telemetry/opentelemetry-erlang) and
 core distribution of the API and SDK.
 
@@ -40,9 +42,15 @@ OpenTelemetry can collect tracing data using instrumentation. Vendors/Users can
 
 ## Supported Runtimes
 
-OpenTelemetry requires OTP v21.3 and above.
+OpenTelemetry Contribution libraries are verified to support the last 3 OTP versions
+to match the supported runtimes of the OpenTelemetry API and SDK.
+
+For Elixir libraries, all versions that support the last 3 OTP versions are verified.
+
+See [Elixir OTP Compatibility](https://hexdocs.pm/elixir/1.16/compatibility-and-deprecations.html#compatibility-between-elixir-and-erlang-otp) for supported OTP/Elixir combinations.
 
-See [Elixir OTP Compatibility](https://hexdocs.pm/elixir/1.12/compatibility-and-deprecations.html#compatibility-between-elixir-and-erlang-otp) for supported OTP/Elixir combinations.
+Elixir libraries should aim for the minimum supported version to be the lowest possible
+it can for the code in the library, but must at least support versions outlined above.
 
 ## Contributing