From 2d9e02053302a16a5a3902d6325ad53d0662ff8f Mon Sep 17 00:00:00 2001
From: Ghislain Fourny <ghislain.fourny@gmail.com>
Date: Wed, 16 Jul 2025 14:04:46 +0200
Subject: [PATCH] Update README.md

---
 README.md | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 1588d8f..69ab865 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ Install with
 pip install jsoniq
 ```
 
-*Important note*: since the jsoniq package depends on pyspark 4, Java 17 or Java 21 is a requirement. If another version of Java is installed, this may lead to an error message such as "Unsupported class file major version 61". If so, you will need to check that JAVA_HOME is properly set.
+*Important note*: since the jsoniq package depends on pyspark 4, Java 17 or Java 21 is a requirement. If another version of Java is installed, the execution of a Python program attempting to create a RumbleSession will lead to an error message on stderr that contains explanations.
 
 ## Sample code
 
@@ -184,10 +184,14 @@ print(seq.json());
 
 # Last updates
 
+## Version 0.1.0 alpha 10
+- Add an explicit explanation on stderr if the Java version is not properly set, together with hints.
+
+## Version 0.1.0 alpha 9
+- Upgrade to Spark 4, which aligns the internal scala versions to 2.13 and should remove some errors. Requires Java 17 or 21.
+
 ## Version 0.1.0 alpha 8
 - Ability to write back a sequence of items to local disk, HDFS, S3... in various formats (JSON, CSV, Parquet...).
 - Automatically declare external variables bound as DataFrames to improve userfriendliness.
 - Simplified the function names to make them more intuitive (json(), items(), df(), rdd(), etc).
 
-## Version 0.1.0 alpha 9
-Upgrade to Spark 4, which aligns the internal scala versions to 2.13 and should remove some errors. Requires Java 17 or 21.