diff --git a/.circleci/config.yml b/.circleci/config.yml
index bbd5e46..b3b43db 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -27,7 +27,7 @@ jobs:
       - run:
           name: Upload coverage
           command: |
-            tox -e coverage
+            tox -e coverage -- xml
             bash <(curl -s https://codecov.io/bash)
   deploy:
     parameters:
@@ -64,10 +64,8 @@ workflows:
           requires:
             - tests
           filters:
-            branches:
-              only: master
             tags:
-              only: v*
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+$/
           twine_repository: pypi
           twine_password: $PYPI_TOKEN
       - deploy:
@@ -75,6 +73,6 @@ workflows:
             - tests
           filters:
             tags:
-              only: v*
+              only: /^v[0-9]+\.[0-9]+.[0-9]+\.dev[0-9]*$/
           twine_repository: testpypi
           twine_password: $TESTPYPI_TOKEN
\ No newline at end of file
diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index a849608..dd47d32 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,9 +1,17 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+## [1.1.0] - 2020-12-26
+### Added
+- usage of shared-memory for process-based prefetching (requires python >= 3.8)
+
+### Removed
+- 'sharedmem' prefetching backend
+- support for python <= 3.5
+
 ## [1.0.0] - 2019-12-27
 ### Added
-- prefteching using shared memory for zero-copy data transfer
+- prefetching using shared memory for zero-copy data transfer
 - case and switch functions
 
 ### Changed
@@ -17,7 +25,7 @@ All notable changes to this project will be documented in this file.
 
 ## [0.9.0] - 2018-09-10
 ### Added
-- improved documention
+- improved documentation
 
 ### Changed
 - changed user-code error reporting (more idiomatic)
diff --git a/docs/examples/dataloader.py b/docs/examples/dataloader.py
index d68f3a6..d493693 100644
--- a/docs/examples/dataloader.py
+++ b/docs/examples/dataloader.py
@@ -87,6 +87,8 @@ def __init__(
           transfers between workers and the main process. That shared
           memory is divided into num_worker * prefetch_factor slots.
         - timeout is not implemented
+        - a pool of shared memory with a fixed size (shm_size) is used for
+          zero-copy buffer transfers from workers.
         """
         # sampling/batching
         self.dataset = dataset
@@ -113,6 +115,7 @@ def __len__(self):
 
     def make_sequence(self):
         """Build a sequence that looks like a dataloader when iterated over."""
+        # shuffling
         if self.batch_sampler:
             batch_indices = list(self.batch_sampler)
             out = seqtools.smap(lambda bi: [self.dataset[i] for i in bi], batch_indices)
diff --git a/tests/test_release.py b/tests/test_release.py
index ceed076..28f49b4 100644
--- a/tests/test_release.py
+++ b/tests/test_release.py
@@ -38,6 +38,6 @@ def candidate_for_release():
 def test_version():
     version = pkg_resources.require("seqtools")[0].version
 
-    tag = check_output("git describe --exact-match --tags")
+    tag = check_output("git describe --exact-match --tags").lstrip('v')
 
     assert tag == version, "Package version and commit tag do not match"
diff --git a/version.py b/version.py
index 4e63c73..4b35b00 100644
--- a/version.py
+++ b/version.py
@@ -4,7 +4,7 @@
 
 
 # This line is updated automatically
-version = "1.0.0-r18-geb95003"
+version = "1.1.0"
 
 # If we are in the repo, the following script will update the version
 # number and update this file, otherwise, we are probably in the source
@@ -12,7 +12,7 @@
 thisdir = os.path.dirname(__file__)
 try:
     description = subprocess.check_output(
-        "git describe --tags ".split(),
+        "git describe --tags".split(),
         stderr=subprocess.STDOUT,
         cwd=os.path.dirname(__file__),
         universal_newlines=True)