diff --git a/docs/odata-protocol/odata-protocol.html b/docs/odata-protocol/odata-protocol.html
index 0a5a90a4f..b2ad03eb9 100644
--- a/docs/odata-protocol/odata-protocol.html
+++ b/docs/odata-protocol/odata-protocol.html
@@ -483,10 +483,22 @@
1.2 Glossary
1.2.1 Definitions of Terms
1.2.2 Acronyms and Abbreviations
@@ -2791,6 +2803,7 @@ MUST generate PATCH
requests for updates, if the client supports updates (section 11.4.3)
MUST include the $
prefix when specifying OData-defined system query options
MUST use case-sensitive query options, operators, and canonical functions
+MUST encode the plus character (octet 0x2B
) as %2B
in URLs to avoid servers mis-interpreting the plus character as an encoded space
SHOULD support basic authentication as defined in RFC7617 over HTTPS
MAY request entity references in place of entities previously returned in the response (section 11.2.8)
MAY support deleted entities, link entities, deleted link entities in a delta response (section 11.3)
@@ -2799,7 +2812,7 @@ MAY support streaming
in a JSON response (see OData-JSON)
In addition, interoperable OData 4.01 clients
-
+
- MUST send OData 4.0-compliant payloads to services that don't advertise support for 4.01 or greater through the
Core.ODataVersions
metadata annotation (see OData-VocCore)
- MUST specify identifiers in payloads and URLs in the case they are specified in
$metadata
- MUST be prepared to receive any valid 4.01 CSDL
diff --git a/docs/odata-protocol/odata-protocol.md b/docs/odata-protocol/odata-protocol.md
index bc321407a..7c34e86f9 100644
--- a/docs/odata-protocol/odata-protocol.md
+++ b/docs/odata-protocol/odata-protocol.md
@@ -344,8 +344,9 @@ resource representations that are exchanged using OData.
## 1.1 Changes from Earlier Versions
-
-
+Section | Feature / Change | Issue
+--------|------------------|------
+[Section 12.3](#InteroperableODataClients) | Encoding of plus character in URLs | [ODATA-1540](https://issues.oasis-open.org/browse/ODATA-1540)
## 1.2 Glossary
@@ -6644,30 +6645,31 @@ updates ([section 11.4.3](#UpdateanEntity))
query options
9. MUST use case-sensitive query options, operators, and canonical
functions
-10. SHOULD support basic authentication as defined in
+10. MUST encode the plus character (octet `0x2B`) as `%2B` in URLs to avoid servers mis-interpreting the plus character as an encoded space
+11. SHOULD support basic authentication as defined in
[RFC7617](#rfc7617) over HTTPS
-11. MAY request entity references in place of entities previously
+12. MAY request entity references in place of entities previously
returned in the response ([section 11.2.8](#RequestingEntityReferences))
-12. MAY support deleted entities, link entities, deleted link entities
+13. MAY support deleted entities, link entities, deleted link entities
in a delta response ([section 11.3](#RequestingChanges))
-13. MAY support asynchronous responses ([section 11.6](#AsynchronousRequests))
-14. MAY support `metadata=minimal` in a JSON response (see
+14. MAY support asynchronous responses ([section 11.6](#AsynchronousRequests))
+15. MAY support `metadata=minimal` in a JSON response (see
[OData-JSON](#ODataJSON))
-15. MAY support `streaming `in a JSON response (see
+16. MAY support `streaming `in a JSON response (see
[OData-JSON](#ODataJSON))
In addition, interoperable OData 4.01 clients
-16. MUST send OData 4.0-compliant payloads to services that don't
+17. MUST send OData 4.0-compliant payloads to services that don't
advertise support for 4.01 or greater through the
[`Core.ODataVersions`](https://github.com/oasis-tcs/odata-vocabularies/blob/master/vocabularies/Org.OData.Core.V1.md#ODataVersions)
metadata annotation (see [OData-VocCore](#ODataVocCore))
-17. MUST specify identifiers in payloads and URLs in the case they are
+18. MUST specify identifiers in payloads and URLs in the case they are
specified in `$metadata`
-18. MUST be prepared to receive any valid 4.01 CSDL
-19. MUST be prepared to receive any valid 4.01 response according to
+19. MUST be prepared to receive any valid 4.01 CSDL
+20. MUST be prepared to receive any valid 4.01 response according to
the requested format
-20. SHOULD use capabilities (see [OData-VocCap](#ODataVocCap)) to
+21. SHOULD use capabilities (see [OData-VocCap](#ODataVocCap)) to
determine if a 4.01 feature is supported but MAY attempt syntax and be
prepared to handle either
[`501 Not Implemented`](#ResponseCode501NotImplemented) or