diff --git a/Changelog.txt b/Changelog.txt
index 9d3432b..14c5a74 100644
--- a/Changelog.txt
+++ b/Changelog.txt
@@ -1,6 +1,15 @@
 Changelog
 LuaPreprocess
 
+v1.17 (2021-11-22)
+Library:
+- Added predefined macros @@ASSERT() and @@LOG().
+- Added params.release and params.logLevel for controlling aspects of the predefined macros.
+- Added params.macroPrefix and params.macroSuffix (e.g. make @@FOO() call the function MACRO_FOO()).
+Command line program:
+- Added support for using stdin/stdout as input/output. (Specify "-" as the file path.)
+- Added --release and --loglevel options.
+
 v1.16 (2021-11-16)
 Library:
 - Added preprocessor symbols (in the form of '$name').
diff --git a/preprocess.lua b/preprocess.lua
index 151e52b..98c9918 100644
--- a/preprocess.lua
+++ b/preprocess.lua
@@ -27,10 +27,10 @@
 	- getOutputSoFar, getOutputSizeSoFar, getCurrentLineNumberInOutput
 	- outputValue, outputLua, outputLuaTemplate
 	- startInterceptingOutput, stopInterceptingOutput
-	Macros (search for 'PredefinedMacros'):
+	Macros:
 	- ASSERT
 	- LOG
-	Search this file for 'EnvironmentTable' for more info.
+	Search this file for 'EnvironmentTable' and 'PredefinedMacros' for more info.
 
 	Exported stuff from the library:
 	- (all the functions above)
@@ -127,7 +127,7 @@
 
 
 
-local PP_VERSION = "1.16.0-dev"
+local PP_VERSION = "1.17.0"
 
 local MAX_DUPLICATE_FILE_INSERTS = 1000 -- @Incomplete: Make this a parameter for processFile()/processString().
 
@@ -1873,8 +1873,8 @@ end
 
 -- ASSERT()
 --   @@ASSERT( condition [, message=auto ] )
---   Macro. Does nothing if params.release is set, otherwise calls error() if
---   the condition fails. The message is only evaluated if the condition fails.
+--   Macro. Does nothing if params.release is set, otherwise calls error() if the
+--   condition fails. The message argument is only evaluated if the condition fails.
 function metaFuncs.ASSERT(conditionCode, messageCode)
 	errorIfNotRunningMeta(2)
 	if not conditionCode then  error("missing argument #1 to 'ASSERT'", 2)  end
@@ -1903,8 +1903,8 @@ end
 --   Macro. Does nothing if logLevel is lower than params.logLevel,
 --   otherwise prints a value[1] or a formatted message[2].
 --
---   logLevel can be "error" (level 1), "warning" (level 2),
---   "info" (level 3), "debug" (level 4) or "trace" (level 5).
+--   logLevel can be "error", "warning", "info", "debug" or "trace"
+--   (from highest to lowest priority).
 --
 function metaFuncs.LOG(logLevelCode, valueOrFormatCode, ...)
 	errorIfNotRunningMeta(2)
diff --git a/tests/suite.lua b/tests/suite.lua
index b9aaa7a..0c05111 100644
--- a/tests/suite.lua
+++ b/tests/suite.lua
@@ -388,9 +388,9 @@ doTest("Predefined macros", function()
 	assertCodeOutput(luaOut, [[if not (foo) then  error("Assertion failed: foo")  end]])
 
 	local luaOut = assert(pp.processString{ code=[[
-		@@ASSERT(foo ~= "bad", "Bad foo: "..foo)
+		@@ASSERT(foo ~= "good", "Bad foo: "..foo)
 	]]})
-	assertCodeOutput(luaOut, [[if not (foo ~= "bad") then  error(("Bad foo: "..foo))  end]])
+	assertCodeOutput(luaOut, [[if not (foo ~= "good") then  error(("Bad foo: "..foo))  end]])
 
 	-- @@LOG()
 	local luaOut = assert(pp.processString{ logLevel="error", code=[[