diff --git a/CHANGELOG.md b/CHANGELOG.md
index adba187..e85ca6c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,9 +4,18 @@ Versioned according to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
+## [1.1.6] - 2020-04-22
+
+Fixed:
+
+  * Quote all arguments in `scribo-cli` to allow file names with whitespace
+  * Pass on different `k` values at each scale for `sauvola-ms*`
+
 Changed:
 
-  * skip `AlternativeImage/@comments=binarized` in PAGE input
+  * Skip `AlternativeImage/@comments=binarized` in PAGE input
+  * Update `repo/olena` to upstream master
+  * Update `repo/assets` to upstream master
 
 ## [1.1.5] - 2020-03-19
 
diff --git a/README.md b/README.md
index ecd697e..66bb708 100644
--- a/README.md
+++ b/README.md
@@ -42,12 +42,12 @@ This package has the following user interfaces:
 
 ### command line interface `scribo-cli`
 
-Converts images in any format to netpbm (monochrome portable bitmap).
+Converts images in any format.
 
 ```
-Usage: scribo-cli [version] [help] COMMAND [ARGS]
+Usage: scribo-cli COMMAND [ARGS]
 
-List of available COMMAND argument:
+List of available COMMAND options:
 
   Full Toolchains
   ---------------
@@ -88,9 +88,17 @@ List of available COMMAND argument:
 
    * Binarization
 
-     sauvola           Sauvola's algorithm.
+     otsu              Otsu's (1979) global thresholding algorithm.
 
-     sauvola-ms        Multi-scale Sauvola's algorithm.
+     niblack           Niblack's (1985) local thresholding algorithm.
+
+     sauvola           Sauvola and Pietikainen's (2000) local/adpative algorithm.
+
+     kim               Kim's (2004) algorithm.
+
+     wolf              Wolf and Jolion's (2004) algorithm.
+
+     sauvola-ms        Lazzara's (2013) multi-scale Sauvola algorithm.
 
      sauvola-ms-fg     Extract foreground objects and run multi-scale
                        Sauvola's algorithm.
@@ -98,8 +106,19 @@ List of available COMMAND argument:
      sauvola-ms-split  Run multi-scale Sauvola's algorithm on each color
                        component and merge results.
 
----------------------------------------------------------------------------
-See 'scribo-cli COMMAND --help' for more information on a specific command.
+     singh             Singh's (2014) algorithm.
+
+
+  Other
+  -----
+
+     version           Show version and exit
+
+     help              Show this message and exit
+
+
+For command arguments, see 'scribo-cli COMMAND --help' for more information
+on each specific COMMAND.
 ```
 
 For example:
@@ -147,7 +166,7 @@ To be used with [PageXML](https://github.com/PRImA-Research-Lab/PAGE-XML) docume
           "default": 101
         },
         "k": {
-          "description": "Sauvola's formulae parameter",
+          "description": "Sauvola's formulae parameter (foreground weight decreases with k); for Multiscale, multiplied to yield default 0.2/0.3/0.5; for Singh, multiplied to yield default 0.06; for Niblack, multiplied to yield default -0.2; for Wolf/Kim, used directly; for Otsu, does not apply",
           "format": "float",
           "type": "number",
           "default": 0.34
diff --git a/ocrd-tool.json b/ocrd-tool.json
index 678b95a..bbba69e 100644
--- a/ocrd-tool.json
+++ b/ocrd-tool.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.1.5",
+  "version": "1.1.6",
   "git_url": "https://github.com/OCR-D/ocrd_olena",
   "tools": {
     "ocrd-olena-binarize": {
@@ -36,7 +36,7 @@
           "default": 101
         },
         "k": {
-          "description": "Sauvola's formulae parameter (foreground weight decreases with k); for Singh, multiplied to yield default 0.06; for Niblack, multiplied to yield default -0.2; for Wolf/Kim, used directly; for Otsu, does not apply",
+          "description": "Sauvola's formulae parameter (foreground weight decreases with k); for Multiscale, multiplied to yield default 0.2/0.3/0.5; for Singh, multiplied to yield default 0.06; for Niblack, multiplied to yield default -0.2; for Wolf/Kim, used directly; for Otsu, does not apply",
           "format": "float",
           "type": "number",
           "default": 0.34