diff --git a/.mps/modules.xml b/.mps/modules.xml
index dbac636..3168245 100644
--- a/.mps/modules.xml
+++ b/.mps/modules.xml
@@ -9,6 +9,7 @@
+
diff --git a/build.xml b/build.xml
index 2111d97..ec64d39 100644
--- a/build.xml
+++ b/build.xml
@@ -2761,6 +2761,65 @@
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@@ -3112,7 +3171,7 @@
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@@ -3273,6 +3332,7 @@
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@@ -5491,6 +5551,49 @@
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@@ -6053,6 +6156,7 @@
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diff --git a/docs/reference/converter-lang.adoc b/docs/reference/converter-lang.adoc
index a397138..85001a0 100644
--- a/docs/reference/converter-lang.adoc
+++ b/docs/reference/converter-lang.adoc
@@ -48,6 +48,16 @@ Converts all listed languages completely.
If any element in the listed languages uses an element from a non-listed language, we include the element of the non-listed language -- but not any other elements of that non-listed language.
We apply this strategy (known as _tree shaking_) transitively until we included all used elements.
+We can set some flags for special annotation handling:
+
+[horizontal]
+export description annotations::
+Whether concept descriptions should be exported as instances of `io.lionweb.mps.specific.lang.MPS-specific annotations.ConceptDescription`.
+
+export special annotations::
+Whether special concept annotations should be exported:
++
+* `jetbrains.mps.lang.structure.structure.DeprecatedNodeAnnotation` -> `io.lionweb.mps.specific.lang.MPS-specific annotations.Deprecated`
[[instance-json]]
== MPS Instance Model ↔ JSON
diff --git a/languages/io.lionweb.mps.converter.TestDeprecated/io.lionweb.mps.converter.TestDeprecated.mpl b/languages/io.lionweb.mps.converter.TestDeprecated/io.lionweb.mps.converter.TestDeprecated.mpl
new file mode 100644
index 0000000..d0e7cc6
--- /dev/null
+++ b/languages/io.lionweb.mps.converter.TestDeprecated/io.lionweb.mps.converter.TestDeprecated.mpl
@@ -0,0 +1,45 @@
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diff --git a/languages/io.lionweb.mps.converter.TestDeprecated/models/io.lionweb.mps.converter.TestDeprecated.behavior.mps b/languages/io.lionweb.mps.converter.TestDeprecated/models/io.lionweb.mps.converter.TestDeprecated.behavior.mps
new file mode 100644
index 0000000..55c7150
--- /dev/null
+++ b/languages/io.lionweb.mps.converter.TestDeprecated/models/io.lionweb.mps.converter.TestDeprecated.behavior.mps
@@ -0,0 +1,12 @@
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diff --git a/languages/io.lionweb.mps.converter.TestDeprecated/models/io.lionweb.mps.converter.TestDeprecated.structure.mps b/languages/io.lionweb.mps.converter.TestDeprecated/models/io.lionweb.mps.converter.TestDeprecated.structure.mps
new file mode 100644
index 0000000..775ff97
--- /dev/null
+++ b/languages/io.lionweb.mps.converter.TestDeprecated/models/io.lionweb.mps.converter.TestDeprecated.structure.mps
@@ -0,0 +1,150 @@
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