diff --git a/.travis.yml b/.travis.yml
index 0892bc27c..7f3498cb7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,12 +2,6 @@ language: python
 python:
   - '3.4'
 sudo: false
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - libstdc++6
 env:
   global:
     - BUILD_SOC=1
diff --git a/conda/aiohttp/meta.yaml b/conda/aiohttp/meta.yaml
index c251daaad..2b196ffc1 100644
--- a/conda/aiohttp/meta.yaml
+++ b/conda/aiohttp/meta.yaml
@@ -27,7 +27,7 @@ test:
 
   requires:
     - chardet
-    - gunicorn
+    - gunicorn # [not win]
     - nose
 
 about:
diff --git a/doc/manual/installing.rst b/doc/manual/installing.rst
index b95dadb42..9d7523205 100644
--- a/doc/manual/installing.rst
+++ b/doc/manual/installing.rst
@@ -42,25 +42,6 @@ Then you can install the ARTIQ package, it will pull all the necessary dependenc
 
     $ conda install artiq
 
-.. note::
-    You need to have a recent libstdc++6.
-    If you are installing on e.g. Ubuntu 14.04 LTS: you need to update your
-    libstdc++6.
-
-    If the following command outputs `GLIBCXX_3.4.20`, then you don't need to
-    upgrade::
-
-        $ strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX_3.4.20
-        GLIBCXX_3.4.20
-
-    Adapt the previous command to the location of libstdc++ on your system.
-
-    To upgrade, on Ubuntu you need to do the following::
-
-        $ sudo add-apt-repository ppa:ubuntu-toolchain-r/test
-        $ sudo apt-get update
-        $ sudo apt-get install libstdc++6
-
 Preparing the core device FPGA board
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^