********************************************************************* Comprehensive list of improvements and modifications to the Ruminant Nutrition System (RNS) model ********************************************************************* Version 1.x =========== Besides several cosmetic changes, RNS now performs all calculations and reports natively, so R is no longer required to run a simulation. RNS for R remains available in the Tools menu for optional comparison and validation by downloading R (free of charge) from http://www.r-project.org. 1.0.9668.12748 (2026-06-21) --------------------------- (1) Several cosmetic improvements (fixes the report status bar from overlapping the font controls on long names, Windows/Default Layout has better arrangement and includes Parms). (2) Adding an R script is now a single click — if the script box is empty, the "Add" button opens the file browser for you automatically, so you no longer have to browse first and then add. (3) This update also keeps the cursor in the Ration grid after data entry. (4) Fixes the report status bar from overlapping the font controls on long names. (5) Lists all Ration Calculation Reports and RNS for R Reports to the View/Report menu for quickly jumping to any open report. (6) Fixed feed percentages from imported LRNS/CNCPS and CPM Dairy simulations. In the Ration, they are now kept consistent with the amounts so every diet totals 100%, with a new Auto Percentage Correction option under Settings/Program/Ration, and when it's off, feeds that don't add up to 100% are flagged in red with a status‑bar note. (7) Improved RNS for R Scripts for compatibility and speed (RNS_2026-06-16, Methane_2026-06-16, and MineralSupp_2026-06-15). 1.0.9664.32899 (2026-06-17) --------------------------- (1) Added a native calculation engine that reproduces the RNS for R results without an R installation. (2) Added import of simulations from CPM-Dairy and LRNS/CNCPS files. (3) Added import of feed libraries from LRNS/CNCPS. (4) Corrected TDN calculations for bacterial fatty acids, de-novo fatty-acid synthesis, fecal carbohydrate mass balance, and nitrogen/branched-chain amino-acid feedback on fiber digestion to match the reference implementation. (5) Added a diagnostic trace log accessible from Tools for validation and troubleshooting. (6) Improved Unicode/UTF-8 handling and multi-language interface support. (7) Improved Access database handling and overall stability. Version 0.x =========== All calculations and reports are executed using R through the RNS for R in the menu Tools by downloading R (free of charge) from http://www.r-project.org. 0.9.9350.20067 (2025-08-07) --------------------------- (1) Cosmetic changes and update of third party controls. 0.9.9349.36051 (2025-08-06) --------------------------- (1) Fixed updating group/animal/stage in the RNS for R and Farm forms when duplicating or renaming in the Map form. (2) Improved mix optimizer: added TDN (1x), allow sorting by columns, and better visual. (3) Improved RNS for R: shows the output and warnings in a window, faster execution with better error handling, save the output and warnings in the logs folder. (4) Improved RNS for R Script to show package updates and installations. 0.9.9190.15599 (2025-02-28) --------------------------- (1) Cosmetic and execution improvements. (2) Improved search for R engines in the AppData folder and C:\ root. (3) Updated third-party controls. (4) Improved Access database engine setup and management. (5) Updated web downloader (fixed date for registration). (6) Included volatile dry matter (re)calculation in Tools. 0.9.8947.21722 (2024-06-30) --------------------------- (1) RNS runs on AnyCPU (x86 and x64). (2) Improved Translator. (3) Fixed decimals. (4) fixed Feed Library resizing. (5) minor improvements in the interface and speed. 0.1.4040 (2011-01-23) --------------------- (1) Added levels 0 and 1 of solution to the RNS for R (Farm\Level of Solutions). (2) Improvements in the RNS for R reporting, documenting, printing, and creation of PDF (Tools\RNS for R). (3) Implemented the ability to save a feed to an user-created feed library (Feeds\"Save button"). (4) Linked sheep and goats NE to the feed library and removed CHO C kd and ID and Protein C kd and ID from the feed library. Feed libraries compressed and repaired (Feeds\Solution Levels 0 & 1). (5) Implemented the ability to compresss and repair feed libraries (Settings\Feed Libraries\Repair & Compress). To create an user-created feed library to to Settings\Feed Libraries\Management. (6) Double-click on RNS and RNSr files instruct RNS to open them automatically. (7) Added View\File Preview to view RNS for R reports. (8) Fixes in the mix calculations and reporting. 0.1.4035 (2011-01-18) --------------------- (1) Improved compatibility with Windows x64 bits. Currently, RNS is compiled for x86 only. The Microsoft Access Database Engine determines this. If you have Office 2007 or Office 2010 for 64 bits (x64) installed, you will not be able to run RNS. Please, contact me if this is the case. 0.1.4024 (2011-01-07) --------------------- (1) Created a revised ZZZ file. Copy all ZZZ files to My Documents\TAMU\RNS Files\Scripts folder. (2) Fixes in the mix calculations and reporting. 0.1.4019 (2011-01-04) --------------------- (1) Some fixes regarding inconsistencies between Lignin and peNDF reporting. RNS always uses adjusted NDF. (2) Fixes on the report of SP, NPN, NDIN, and ADIN as % of DM. (3) Added the balances for all branched-chain amino acid, if at least one is deficient. (4) Fixed the revised peptide calculation when ruminal N or BCAA was negative. (5) Removed the CPM Dairy equations of de novo syntheses of fatty acids. RNS uses the equations published by Moate et al. (2004). Some coefficients were different. (6) Fixed the calculation of DE. Only positive numbers are shown. TDN can still show negative numbers. 0.1.4010 (2011-01-02) --------------------- (1) Release of the alpha version of RNS.