diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3cb49163..1bd8f4917 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 ## Changelog
 
+### [v1.5.15](https://github.com/fabiolb/fabio/releases/tag/v1.5.15) - 1 Dec 2020
+
+#### Bug Fixes
+
+* [PR #790](https://github.com/fabiolb/fabio/pull/790) - Fix typo in CHANGELOG.md (@stevenscg)
+* [PR #798](https://github.com/fabiolb/fabio/pull/798) - Stop dynamic TCP listener when upstream is no longer available (@fwkz)
+
+#### Improvements
+* [PR #794](https://github.com/fabiolb/fabio/pull/794) - update vendor dependencies
+* [PR #803](https://github.com/fabiolb/fabio/pull/803) - change GOGC default to 100
+
 ### [v1.5.14](https://github.com/fabiolb/fabio/releases/tag/v1.5.14) - 9 Sep 2020
 
 
diff --git a/Dockerfile b/Dockerfile
index 01f7086f3..feb2f6d96 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.14.7-alpine AS build
+FROM golang:1.15.5-alpine AS build
 
 ARG consul_version=1.8.2
 ADD https://releases.hashicorp.com/consul/${consul_version}/consul_${consul_version}_linux_amd64.zip /usr/local/bin
diff --git a/README.md b/README.md
index 769d86d00..cdbb736fd 100644
--- a/README.md
+++ b/README.md
@@ -20,15 +20,22 @@
 ---
 
 #### Notes
-1) From release 1.5.14, release hashes are signed with a new PGP key.
+
+1) From release 1.5.15 onward, fabio changes the default GOGC from 800 back to
+the golang default of 100.  Apparently this made some sense back in the golang 1.5 days, but with
+changes introduced with golang 1.12 and others, this is probably no longer a very good default.
+This is still configurable, as always, but the new default should make the most sense for most users.
+
+2) From release 1.5.14, release hashes are signed with a new PGP key.
 See details [here](https://fabiolb.net/faq/verifying-releases/).
 
-2) From release 1.5.14 onward, fabio binary releases are compiled with golang 1.15+
-.  This means that the fabio will no longer validate upstream
-https certificates that do not have SAN extensions matching the
-server name.  This may be a concern if fabio is communicating with
-  https backends with misconfigured certificates.  If this is a problem, you can specify `tlsskipverify=true`
-on the route.
+3) From release 1.5.14 onward, fabio binary releases are compiled with golang 1.15+.  
+This means that the fabio will no longer validate upstreamhttps certificates that do 
+not have SAN extensions matching the server name.  This may be a concern if fabio is 
+communicating with https backends with misconfigured certificates.  If this is a problem,
+you can specify `tlsskipverify=true` on the route.
+
+
 
 ---
 
@@ -79,8 +86,8 @@ The full documentation is on [fabiolb.net](https://fabiolb.net/)
 1. Install from source, [binary](https://github.com/fabiolb/fabio/releases),
    [Docker](https://hub.docker.com/r/fabiolb/fabio/) or [Homebrew](http://brew.sh).
     ```shell
-	# go 1.13 or higher is required
-    go get github.com/fabiolb/fabio                     (>= go1.13)
+	# go 1.15 or higher is required
+    go get github.com/fabiolb/fabio                     (>= go1.15)
 
     brew install fabio                                  (OSX/macOS stable)
     brew install --devel fabio                          (OSX/macOS devel)