Check for compatibility issues with GeneXus X Evolution 1 or prior versions here.
To convert a Knowledge Base (KB) from GeneXus X Evolution 2 to GeneXus X Evolution 3 follow these steps:
1) Backup your KB, since no return path is provided
2) Open it with a GeneXus GeneXus X Evolution 3 instance, it will be converted automatically when confirming this message:
TITLE: Opening Knowledge Base
This version of GeneXus uses a newer database schema for the Knowledge Base than the one it currently has;
if you open it now a reorganization will be executed and you will not be able to open it with previous versions of GeneXus.
Do you want to open it anyway?
If you proceed, the KB will be converted to GeneXus X Evolution 3 format, and you will not be able to open it again with a previous version.
3) If you have Web Objects in your KB Convert Themes and objects to get Theme class cross references
4) Rebuild All
If your KB uses GeneXus Access Manager or BPM this process will update the associated database schemas. See below for more information.
5) Check out Navigation changes
1) Since X Evolution 3 has Theme class cross references, classes are internally threated as objects and, therefore, have some naming restrictions (e.g. dots and hyphens are not allowed any more). Trying to name a class with that characters will produce the following error:
Invalid characters in name: 'TrnSuble-velGrid'
2) Since Module path syntax involves dots, objects that belong to modules cannot include dots in their names.
The conversion process takes this into account and renames objects replacing the dots by underscores.
Every time you convert a KB from the previous version, it is a good practice to perform a Navigation Comparison in order to detect, during specification time, some changes that could affect your system. Here you can see some of the differences that you may find in your own KB.
In particular, make sure to check this article.
A list of conversion error and warning messages are detailed here.
If you are using Patterns, Extensions provided by others, please contact their manufacturers, because they need to provide a new version of it due to related compatibility issues.
Android requirements have changed since GeneXus X Evolution 2, then to create Android applications with GeneXus X Evolution 3 it is necessary to satisfy the Android Requirements.
SD Leaves Control is deprecated.
GeneXus Server X Evolution 3 is required for Team Develpment. Read GeneXus Server 15 Installation Manual for further instructions.
GXflow Engine's database schema changed, workflow tables need to be deployed again. To do so in the production environment: create a business process deploy file from your Knowledge Base, install GXflow X Evolution 3 Setup for Production Environment and deploy the workflow tables using the Business Process Deployer.
GXflow client supports only the language of the Knowledge base. To support multiple languages, Translation Type Property has to be set to Run-time.
There are some events that now will execute automatically at the client side. That implies that in those events the whole server side code will not be executed.
Read Event execution on the client side in X Evolution 3 for more information.
The redirects now return a Http Status Code 301 and before, the Code returned used to be 302. This change helps to SEO.
Attribute's Description Property is not taken into account in code generation and Attribute's Title Property is used instead. This affects all standard GXSPC_OutOfRange and GXM_DoesNotMatchRegExp messages.
Since there have been added optimizations in build mechanisms, now only the necessary metadata is generated for each main object and therefore you must also include dummy calls to the objects that are called dynamically and are not in the call tree of the main.
IsNull Method on simple SDT items not more supported
IsNull Method of simple members SDTs is not more supported, use IsEmpty Method instead. Note that this restriction does not affect variables based on Business Components or SDT members based on other SDTs.
Support for Regular expression validation on variables is added since Upgrade #2.
All variables based on attributes or domains with a regular expression defined will get validated automatically on a WebPanel.
More Information... (SAC # 27300)
GAM Database schema changes to version 3.0.6. Read GAM database version 3.0.6 for more information.
When a Knowledge Base is opened with GeneXus X Evolution 3 a convertion process is executed. See Modules and backward compatibility for further details.
In addition some limitations and changes are introduced by the use of Modules, please read:
When the application uses this navigation style on iOS, the width of the SD Panel or dashboard located on the left or right target is 280 dips, so the panel in the center won't overlap.
In the previews version the Order, Break By and Search options was displayed on the Tab Conditions (See Work With and Panel for Smart Devices tabs). As this information applies only to Grids, it has been moved to the Grid control's properties list.
With the inclusion of Modules the following syntax is not supported when declaring multiple methods in Web services:
&Out = ProcedureSample.test2(&In)
The following error will appear
error: <stub> is a command and cannot be assigned
Use the following syntax