diff --git a/repository/Grease-Core.package/GRPackage.class/instance/resolveWith..st b/repository/Grease-Core.package/GRPackage.class/instance/resolveWith..st
index 9152b2e0..d7d8a964 100644
--- a/repository/Grease-Core.package/GRPackage.class/instance/resolveWith..st
+++ b/repository/Grease-Core.package/GRPackage.class/instance/resolveWith..st
@@ -21,4 +21,6 @@ resolveWith: aDictionary
 											aDictionary at: (each copyReplaceAll: '-Pharo-' with: '-Squeak5-') ifAbsent: [
 												"try -Squeak6-"
 												aDictionary at: (each copyReplaceAll: '-Pharo-' with: '-Squeak6-') ifAbsent: [
-												self error: self name printString , ' depends on unknown package ' , each printString ] ] ] ] ] ] ] ] ] ] ]
\ No newline at end of file
+													"specific for Grease-Slime"
+													aDictionary at: (each copyReplaceAll: 'Grease-Pharo-Slime' with: 'Grease-Slime') ifAbsent: [
+														self error: self name printString , ' depends on unknown package ' , each printString ] ] ] ] ] ] ] ] ] ] ] ]
\ No newline at end of file
diff --git a/repository/Grease-Core.package/GRPlatform.class/instance/version.st b/repository/Grease-Core.package/GRPlatform.class/instance/version.st
index 01828a6b..c721c9a6 100644
--- a/repository/Grease-Core.package/GRPlatform.class/instance/version.st
+++ b/repository/Grease-Core.package/GRPlatform.class/instance/version.st
@@ -2,5 +2,5 @@ version info
 version
 	"Answer the Grease version"
 
-	^ (GRVersion major: 1 minor: 7 revision: 0)
+	^ (GRVersion major: 1 minor: 7 revision: 5)
 		yourself
\ No newline at end of file
diff --git a/repository/Grease-GemStone-Core.package/GRGemStonePlatform.class/instance/fileExists..st b/repository/Grease-GemStone-Core.package/GRGemStonePlatform.class/instance/fileExists..st
index 3ba20dce..f5f8c691 100644
--- a/repository/Grease-GemStone-Core.package/GRGemStonePlatform.class/instance/fileExists..st
+++ b/repository/Grease-GemStone-Core.package/GRGemStonePlatform.class/instance/fileExists..st
@@ -1,3 +1,3 @@
 file-library
 fileExists: aString
-	^ (FileDirectory forFileName: aString) exists
\ No newline at end of file
+	^ GsFile existsOnServer: aString
\ No newline at end of file
diff --git a/repository/Grease-Pharo70-Core.package/GRPharoPlatform.class/instance/readFileStreamOn.do.binary..st b/repository/Grease-Pharo70-Core.package/GRPharoPlatform.class/instance/readFileStreamOn.do.binary..st
index 2b7331ab..22443227 100644
--- a/repository/Grease-Pharo70-Core.package/GRPharoPlatform.class/instance/readFileStreamOn.do.binary..st
+++ b/repository/Grease-Pharo70-Core.package/GRPharoPlatform.class/instance/readFileStreamOn.do.binary..st
@@ -4,4 +4,4 @@ readFileStreamOn: aString do: aBlock binary: aBoolean
 
 	^ aBoolean
 		ifTrue: [ aString asFileReference binaryReadStreamDo: aBlock ]
-		ifFalse: [ aString asFileReference readStreamEncoded: 'ascii' do: aBlock ]
\ No newline at end of file
+		ifFalse: [ aString asFileReference readStreamEncoded: 'utf-8' do: aBlock ]
\ No newline at end of file
diff --git a/repository/Grease-Pharo70-Core.package/GRPharoPlatform.class/instance/writeFileStreamOn.do.binary..st b/repository/Grease-Pharo70-Core.package/GRPharoPlatform.class/instance/writeFileStreamOn.do.binary..st
index 762e9cca..22cf6c64 100644
--- a/repository/Grease-Pharo70-Core.package/GRPharoPlatform.class/instance/writeFileStreamOn.do.binary..st
+++ b/repository/Grease-Pharo70-Core.package/GRPharoPlatform.class/instance/writeFileStreamOn.do.binary..st
@@ -2,4 +2,4 @@ file library
 writeFileStreamOn: aString do: aBlock binary: aBoolean
 	^ aBoolean
 		ifTrue: [ aString asFileReference binaryWriteStreamDo: aBlock ]
-		ifFalse: [ aString asFileReference writeStreamEncoded: 'ascii' do: aBlock ]
\ No newline at end of file
+		ifFalse: [ aString asFileReference writeStreamEncoded: 'utf-8' do: aBlock ]
\ No newline at end of file
diff --git a/repository/Grease-Pharo90-Core.package/GRPharoPlatform.class/instance/readFileStreamOn.do.binary..st b/repository/Grease-Pharo90-Core.package/GRPharoPlatform.class/instance/readFileStreamOn.do.binary..st
index f9dda145..1852f83e 100644
--- a/repository/Grease-Pharo90-Core.package/GRPharoPlatform.class/instance/readFileStreamOn.do.binary..st
+++ b/repository/Grease-Pharo90-Core.package/GRPharoPlatform.class/instance/readFileStreamOn.do.binary..st
@@ -3,4 +3,4 @@ readFileStreamOn: aString do: aBlock binary: aBoolean
 
 	^ aBoolean
 		ifTrue: [ aString asFileReference binaryReadStreamDo: aBlock ]
-		ifFalse: [ aString asFileReference readStreamEncoded: 'ascii' do: aBlock ]
\ No newline at end of file
+		ifFalse: [ aString asFileReference readStreamEncoded: 'utf-8' do: aBlock ]
\ No newline at end of file
diff --git a/repository/Grease-Pharo90-Core.package/GRPharoPlatform.class/instance/writeFileStreamOn.do.binary..st b/repository/Grease-Pharo90-Core.package/GRPharoPlatform.class/instance/writeFileStreamOn.do.binary..st
index c06164c8..0b43135e 100644
--- a/repository/Grease-Pharo90-Core.package/GRPharoPlatform.class/instance/writeFileStreamOn.do.binary..st
+++ b/repository/Grease-Pharo90-Core.package/GRPharoPlatform.class/instance/writeFileStreamOn.do.binary..st
@@ -2,4 +2,4 @@ file library
 writeFileStreamOn: aString do: aBlock binary: aBoolean
 	^ aBoolean
 		ifTrue: [ aString asFileReference binaryWriteStreamDo: aBlock ]
-		ifFalse: [ aString asFileReference writeStreamEncoded: 'ascii' do: [ :str | aBlock value: (ZnNewLineWriterStream on: str) ] ]
\ No newline at end of file
+		ifFalse: [ aString asFileReference writeStreamEncoded: 'utf-8' do: [ :str | aBlock value: (ZnNewLineWriterStream on: str) ] ]
\ No newline at end of file
diff --git a/repository/Grease-Pharo90-Core.package/SequenceableCollection.extension/instance/sorted.st b/repository/Grease-Pharo90-Core.package/SequenceableCollection.extension/instance/sorted.st
deleted file mode 100644
index 0836e77c..00000000
--- a/repository/Grease-Pharo90-Core.package/SequenceableCollection.extension/instance/sorted.st
+++ /dev/null
@@ -1,3 +0,0 @@
-*Grease-Pharo90-Core
-sorted
-	^ self sorted: [ :a :b | a <= b ]
\ No newline at end of file
diff --git a/repository/Grease-Tests-Core.package/GRPackageTest.class/instance/testPackages.st b/repository/Grease-Tests-Core.package/GRPackageTest.class/instance/testPackages.st
index b42d4730..3c074d00 100644
--- a/repository/Grease-Tests-Core.package/GRPackageTest.class/instance/testPackages.st
+++ b/repository/Grease-Tests-Core.package/GRPackageTest.class/instance/testPackages.st
@@ -6,4 +6,5 @@ testPackages
 	packages do: [ :each | 
 		self assert: each name notEmpty.
 		self assert: each license notNil.
-		self assert: each url notNil ]
\ No newline at end of file
+		self deny: (each dependencies includes: nil).
+		self assert: each url notNil ].
\ No newline at end of file
diff --git a/repository/Grease-Tests-Core.package/GRPlatformTest.class/instance/testFileExists.st b/repository/Grease-Tests-Core.package/GRPlatformTest.class/instance/testFileExists.st
new file mode 100644
index 00000000..5d7796bc
--- /dev/null
+++ b/repository/Grease-Tests-Core.package/GRPlatformTest.class/instance/testFileExists.st
@@ -0,0 +1,9 @@
+tests-filestreams
+testFileExists
+	| theFileName |
+	self 
+		writeToFile: 'test' 
+		withFileNameDo:[ :fileName |
+			self assert: (GRPlatform current fileExists: fileName).
+			theFileName := fileName ].
+	self deny: (GRPlatform current fileExists: theFileName)
\ No newline at end of file
diff --git a/repository/Grease-Tests-Pharo-Core.package/GRPharoPlatformTest.class/instance/testReadWriteToFileInFolderTextUTF8.st b/repository/Grease-Tests-Pharo-Core.package/GRPharoPlatformTest.class/instance/testReadWriteToFileInFolderTextUTF8.st
new file mode 100644
index 00000000..a85ee772
--- /dev/null
+++ b/repository/Grease-Tests-Pharo-Core.package/GRPharoPlatformTest.class/instance/testReadWriteToFileInFolderTextUTF8.st
@@ -0,0 +1,7 @@
+tests-filestreams
+testReadWriteToFileInFolderTextUTF8
+	#('Übèrstrîñgé' '£ęλ~') do:[ :text | 
+		self 
+			writeToFile: text 
+			withFileNameDo:[ :fileName |
+				self assert: text equals: (GRPlatform current contentsOfFile: fileName binary: false) ] ].
\ No newline at end of file
diff --git a/repository/Grease-Tests-Slime.package/.filetree b/repository/Grease-Tests-Slime.package/.filetree
index 8998102c..57a67973 100644
--- a/repository/Grease-Tests-Slime.package/.filetree
+++ b/repository/Grease-Tests-Slime.package/.filetree
@@ -1,4 +1,5 @@
 {
-	"noMethodMetaData" : true,
 	"separateMethodMetaAndSource" : false,
-	"useCypressPropertiesFile" : true }
+	"noMethodMetaData" : true,
+	"useCypressPropertiesFile" : true
+}
\ No newline at end of file
diff --git a/repository/Grease-Tests-Slime.package/GRPackage.extension/class/greaseTestsSlime.st b/repository/Grease-Tests-Slime.package/GRPackage.extension/class/greaseTestsSlime.st
index a6fa00fd..0ef4a959 100644
--- a/repository/Grease-Tests-Slime.package/GRPackage.extension/class/greaseTestsSlime.st
+++ b/repository/Grease-Tests-Slime.package/GRPackage.extension/class/greaseTestsSlime.st
@@ -3,6 +3,6 @@ greaseTestsSlime
 	^ self new
 		name: 'Grease-Tests-Slime';
 		description: 'Unit tests for the package Grease-Slime.';
-		addDependency: 'Grease-Slime';
+		addDependency: 'Grease-Pharo-Slime';
 		url: #seasideUrl;
 		yourself
\ No newline at end of file
diff --git a/repository/Grease-Tests-Slime.package/GRPackage.extension/properties.json b/repository/Grease-Tests-Slime.package/GRPackage.extension/properties.json
index dd2faaf0..ae522a7e 100644
--- a/repository/Grease-Tests-Slime.package/GRPackage.extension/properties.json
+++ b/repository/Grease-Tests-Slime.package/GRPackage.extension/properties.json
@@ -1,2 +1,3 @@
 {
-	"name" : "GRPackage" }
+	"name" : "GRPackage"
+}
\ No newline at end of file
diff --git a/repository/Grease-Tests-Slime.package/GRSlimeTest.class/properties.json b/repository/Grease-Tests-Slime.package/GRSlimeTest.class/properties.json
index 803da85e..e01b8a06 100644
--- a/repository/Grease-Tests-Slime.package/GRSlimeTest.class/properties.json
+++ b/repository/Grease-Tests-Slime.package/GRSlimeTest.class/properties.json
@@ -1,15 +1,14 @@
 {
-	"category" : "Grease-Tests-Slime",
-	"classinstvars" : [
-		 ],
-	"classvars" : [
-		 ],
 	"commentStamp" : "",
+	"super" : "TestCase",
+	"category" : "Grease-Tests-Slime",
+	"classinstvars" : [ ],
+	"pools" : [ ],
+	"classvars" : [ ],
 	"instvars" : [
 		"model",
-		"environment" ],
+		"environment"
+	],
 	"name" : "GRSlimeTest",
-	"pools" : [
-		 ],
-	"super" : "TestCase",
-	"type" : "normal" }
+	"type" : "normal"
+}
\ No newline at end of file
diff --git a/repository/Grease-Tests-Slime.package/properties.json b/repository/Grease-Tests-Slime.package/properties.json
index f037444a..6f31cf5a 100644
--- a/repository/Grease-Tests-Slime.package/properties.json
+++ b/repository/Grease-Tests-Slime.package/properties.json
@@ -1,2 +1 @@
-{
-	 }
+{ }
\ No newline at end of file