diff --git a/engine/src/main/java/org/hibernate/search/cfg/ClassBridgeMapping.java b/engine/src/main/java/org/hibernate/search/cfg/ClassBridgeMapping.java
index 27564af1f97..a008ba8ee89 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/ClassBridgeMapping.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/ClassBridgeMapping.java
@@ -79,6 +79,13 @@ public ClassBridgeMapping termVector(TermVector termVector) {
 		return this;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public ClassBridgeMapping boost(float boost) {
 		final Map<String, Object> boostAnn = new HashMap<String, Object>();
 		boostAnn.put( "value", boost );
diff --git a/engine/src/main/java/org/hibernate/search/cfg/EntityDescriptor.java b/engine/src/main/java/org/hibernate/search/cfg/EntityDescriptor.java
index a2d720534c6..b737ea6d298 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/EntityDescriptor.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/EntityDescriptor.java
@@ -91,10 +91,24 @@ public void setCacheInMemory(Map<String, Object> cacheInMemory) {
 		//No-op: this feature is no longer available
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public void setBoost(Map<String, Object> boost) {
 		this.boost = boost;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public Map<String, Object> getBoost() {
 		return boost;
 	}
@@ -159,10 +173,24 @@ public Map<String, Object> getProvidedId() {
 		return this.providedId;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public void setDynamicBoost(Map<String, Object> dynamicEntityBoost) {
 		this.dynamicBoost = dynamicEntityBoost;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public Map<String, Object> getDynamicBoost() {
 		return this.dynamicBoost;
 	}
diff --git a/engine/src/main/java/org/hibernate/search/cfg/EntityMapping.java b/engine/src/main/java/org/hibernate/search/cfg/EntityMapping.java
index 1fd4ea38e31..a5500dcd687 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/EntityMapping.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/EntityMapping.java
@@ -36,6 +36,13 @@ public EntitySpatialMapping spatial() {
 		return new EntitySpatialMapping( mapping, entity );
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public EntityMapping boost(float boost) {
 		final Map<String, Object> boostAnn = new HashMap<String, Object>();
 		boostAnn.put( "value", boost );
diff --git a/engine/src/main/java/org/hibernate/search/cfg/EntitySpatialMapping.java b/engine/src/main/java/org/hibernate/search/cfg/EntitySpatialMapping.java
index 558aa374594..b35bac26b73 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/EntitySpatialMapping.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/EntitySpatialMapping.java
@@ -44,6 +44,13 @@ public EntitySpatialMapping store(Store store) {
 		return this;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public EntitySpatialMapping boost(float boost) {
 		final Map<String, Object> boostAnn = new HashMap<String, Object>();
 		boostAnn.put( "value", boost );
diff --git a/engine/src/main/java/org/hibernate/search/cfg/FieldBridgeMapping.java b/engine/src/main/java/org/hibernate/search/cfg/FieldBridgeMapping.java
index b8ce3fa95c1..ca96840d5e8 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/FieldBridgeMapping.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/FieldBridgeMapping.java
@@ -63,6 +63,13 @@ public FieldMapping termVector(TermVector termVector) {
 		return fieldMapping.termVector( termVector );
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public FieldMapping boost(float boost) {
 		return fieldMapping.boost( boost );
 	}
diff --git a/engine/src/main/java/org/hibernate/search/cfg/FieldMapping.java b/engine/src/main/java/org/hibernate/search/cfg/FieldMapping.java
index 59ce90625dc..5f2cc328cf3 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/FieldMapping.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/FieldMapping.java
@@ -101,6 +101,13 @@ public FieldMapping termVector(TermVector termVector) {
 		return this;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public FieldMapping boost(float boost) {
 		final Map<String, Object> boostAnn = new HashMap<String, Object>();
 		boostAnn.put( "value", boost );
diff --git a/engine/src/main/java/org/hibernate/search/cfg/IndexedClassBridgeMapping.java b/engine/src/main/java/org/hibernate/search/cfg/IndexedClassBridgeMapping.java
index 400406c7d50..5a6ccd41cbb 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/IndexedClassBridgeMapping.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/IndexedClassBridgeMapping.java
@@ -81,6 +81,13 @@ public IndexedClassBridgeMapping termVector(TermVector termVector) {
 		return this;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public IndexedClassBridgeMapping boost(float boost) {
 		final Map<String, Object> boostAnn = new HashMap<String, Object>();
 		boostAnn.put( "value", boost );
diff --git a/engine/src/main/java/org/hibernate/search/cfg/IndexedMapping.java b/engine/src/main/java/org/hibernate/search/cfg/IndexedMapping.java
index 7d1b40b960d..d7fec35ebaf 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/IndexedMapping.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/IndexedMapping.java
@@ -52,6 +52,13 @@ public IndexedMapping cacheFromIndex(FieldCacheType... type) {
 		return this;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public IndexedMapping boost(float boost) {
 		final Map<String, Object> boostAnn = new HashMap<String, Object>();
 		boostAnn.put( "value", boost );
diff --git a/engine/src/main/java/org/hibernate/search/cfg/PropertyDescriptor.java b/engine/src/main/java/org/hibernate/search/cfg/PropertyDescriptor.java
index a12a3b5e447..6b4b49e7482 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/PropertyDescriptor.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/PropertyDescriptor.java
@@ -122,10 +122,24 @@ public void setContainedIn(Map<String, Object> containedIn) {
 		this.containedIn = containedIn;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public void setDynamicBoost(Map<String, Object> dynamicBoostAnn) {
 		this.dynamicBoost = dynamicBoostAnn;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public Map<String,Object> getDynamicBoost() {
 		return this.dynamicBoost;
 	}
diff --git a/engine/src/main/java/org/hibernate/search/cfg/PropertySpatialMapping.java b/engine/src/main/java/org/hibernate/search/cfg/PropertySpatialMapping.java
index d6c059107ea..9eeb9e0d813 100644
--- a/engine/src/main/java/org/hibernate/search/cfg/PropertySpatialMapping.java
+++ b/engine/src/main/java/org/hibernate/search/cfg/PropertySpatialMapping.java
@@ -46,6 +46,13 @@ public PropertySpatialMapping store(Store store) {
 		return this;
 	}
 
+	/**
+	 * @deprecated Index-time boosting will not be possible anymore starting from Lucene 7.
+	 * You should use query-time boosting instead, for instance by calling
+	 * {@link org.hibernate.search.query.dsl.FieldCustomization#boostedTo(float) boostedTo(float)}
+	 * when building queries with the Hibernate Search query DSL.
+	 */
+	@Deprecated
 	public PropertySpatialMapping boost(float boost) {
 		final Map<String, Object> boostAnn = new HashMap<String, Object>();
 		boostAnn.put( "value", boost );