diff --git a/doc/log/commit_log_v1.1.txt b/doc/log/commit_log_v1.1.txt
index 36f1e5e..4cd8e89 100644
--- a/doc/log/commit_log_v1.1.txt
+++ b/doc/log/commit_log_v1.1.txt
@@ -1,3 +1,16 @@
+----------------
+Date: 2017-01-29
+Author: Sonny Jeon
+Subject: Tidying up parking override control implementation
+
+[new] Added a default configuration for the parking override control
+upon a reset or power-up. By default, parking is enabled, but this may
+be disabled via a config.h option.
+
+[fix] Parking override control should be checking if the command word
+is passed, rather than the value.
+
+
 ----------------
 Date: 2017-01-28
 Author: chamnit
diff --git a/doc/markdown/interface.md b/doc/markdown/interface.md
index 850d9d2..ccb063f 100644
--- a/doc/markdown/interface.md
+++ b/doc/markdown/interface.md
@@ -408,16 +408,16 @@ Feedback messages provide non-critical information on what Grbl is doing, what i
   - `[VER:]` and `[OPT:]`: Indicates build info data from a `$I` user query. These build info messages are followed by an `ok` to confirm the `$I` was executed, like so:
  
       ```
-      [VER:v1.1d.20161014:Some string]
-      [OPT:VL]
+      [VER:v1.1f.20170131:Some string]
+      [OPT:VL,16,128]
       ok
       ```
       
   		- The first line `[VER:]` contains the build version and date.
       - A string may appear after the second `:` colon. It is a stored EEPROM string a user via a `$I=line` command or OEM can place there for personal use or tracking purposes.
-  		- The `[OPT:]` line follows immediately after and contains character codes for compile-time options that were either enabled or disabled. The codes are defined below and a CSV file is also provided for quick parsing. This is generally only used for quickly diagnosing firmware bugs or compatibility issues.
+  		- The `[OPT:]` line follows immediately after and contains character codes for compile-time options that were either enabled or disabled and two values separated by commas, which indicates the total usable planner blocks and serial RX buffer bytes, respectively. The codes are defined below and a CSV file is also provided for quick parsing. This is generally only used for quickly diagnosing firmware bugs or compatibility issues. 
 
-		| `OPT` Code | Setting Description, Units |
+			| `OPT` Code | Setting Description, Units |
 |:-------------:|----|
 | **`V`** | Variable spindle enabled |
 | **`N`** | Line numbers enabled |
@@ -439,7 +439,7 @@ Feedback messages provide non-critical information on what Grbl is doing, what i
 | **`E`** | Force sync upon EEPROM write disabled |
 | **`W`** | Force sync upon work coordinate offset change disabled |
 | **`L`** | Homing initialization auto-lock disabled |
-
+    
   - `[echo:]` : Indicates an automated line echo from a command just prior to being parsed and executed. May be enabled only by a config.h option. Often used for debugging communication issues. A typical line echo message is shown below. A separate `ok` will eventually appear to confirm the line has been parsed and executed, but may not be immediate as with any line command containing motions.
       ```
       [echo:G1X0.540Y10.4F100]
diff --git a/grbl/grbl.h b/grbl/grbl.h
index 67bf295..48ef599 100644
--- a/grbl/grbl.h
+++ b/grbl/grbl.h
@@ -23,7 +23,7 @@
 
 // Grbl versioning system
 #define GRBL_VERSION "1.1f"
-#define GRBL_VERSION_BUILD "20170129"
+#define GRBL_VERSION_BUILD "20170131"
 
 // Define standard libraries used by Grbl.
 #include <avr/io.h>
diff --git a/grbl/report.c b/grbl/report.c
index 7a0bde2..5a541fb 100644
--- a/grbl/report.c
+++ b/grbl/report.c
@@ -433,9 +433,13 @@ void report_build_info(char *line)
   #ifndef HOMING_INIT_LOCK
     serial_write('L');
   #endif
+
   // NOTE: Compiled values, like override increments/max/min values, may be added at some point later.
-  // These will likely have a comma delimiter to separate them.   
-    
+  serial_write(',');
+  print_uint8_base10(BLOCK_BUFFER_SIZE-1);
+  serial_write(',');
+  print_uint8_base10(RX_BUFFER_SIZE);
+
   report_util_feedback_line_feed();
 }