A release-modifier composition having a hydroxyl content of less than 13,000 parts per million (ppm) and comprising a capped polydiorganosiloxane-(MQ resin) copolymer comprising a macromolecule having an MQ resin portion covalently bonded to a polydiorganosiloxane portion; wherein the polydiorganosiloxane portion comprises two D segments coupled to each other via a (R V,Alkenyl)SiO 2/2 unit, wherein the D segments are free of carbon-carbon double and triple bonds; wherein the D segments independently are two or more (R D) 2 SiO 2/2 units; and wherein the macromolecule is a product of a process comprising the following steps: (i) Contacting together at least reactants and: Reactant a di(HO-endblocked)-polydiorganosiloxane polymer having a degree of polymerization of from 300 to 2,000 and lacking carbon-carbon double and triple bonds; wherein the di(HO-endblocked)-polydiorganosiloxane polymer comprises HO(R M) 2 SiO 1/2 end-units (M units) having hydroxy end-groups and a plurality of (R D) 2 SiO 2/2 units (D units) being free of both carbon-carbon double and triple bonds and each R M and R D independently is (C 1 -C 6)alkyl, (C 3 -C 6)cycloalkyl, or phenyl; and Reactant is an alkenyl-containing coupling agent of formula (R V,Alkenyl)Si 2, wherein R V is (C 1 -C 6)hydrocarbyl, Alkenyl is (C 2 -C 6)alkenyl, and each X independently is a condensation reaction leaving group; wherein the contacting gives a polydiorganosiloxane precursor having a degree of polymerization of from 500 to 4,400 and an alkenyl group content of from 0.01 to 10 mole percent; (ii) Contacting together at least the polydiorganosiloxane precursor and a polyorganosiloxane MQ resin in contact with a condensation reaction catalyst, wherein the polyorganosiloxane MQ resin comprises M and Q units, to give a HO-functional polydiorganosiloxane-(MQ resin) copolymer having a hydroxyl content (Si-OH content) greater than 15,000 ppm; and (iii) Contacting together at least the HO-functional polydiorganosiloxane-(MQ resin) copolymer and a trihydrocarbylsilylating agent to give the capped polydiorganosiloxane-(MQ resin) copolymer having a hydroxyl content of less than 13,000 ppm; and wherein the hydroxyl content of the capped polydiorganosiloxane-(MQ resin) copolymer is less than the hydroxyl content of the HO-functional polydiorganosiloxane-(MQ resin) copolymer. (i) Contacting together at least reactants and: Reactant a di(HO-endblocked)-polydiorganosiloxane polymer having a degree of polymerization of from 300 to 2,000 and lacking carbon-carbon double and triple bonds; wherein the di(HO-endblocked)-polydiorganosiloxane polymer comprises HO(R M) 2 SiO 1/2 end-units (M units) having hydroxy end-groups and a plurality of (R D) 2 SiO 2/2 units (D units) being free of both carbon-carbon double and triple bonds and each R M and R D independently is (C 1 -C 6)alkyl, (C 3 -C 6)cycloalkyl, or phenyl; and Reactant is an alkenyl-containing coupling agent of formula (R V,Alkenyl)Si 2, wherein R V is (C 1 -C 6)hydrocarbyl, Alkenyl is (C 2 -C 6)alkenyl, and each X independently is a condensation reaction leaving group; wherein the contacting gives a polydiorganosiloxane precursor having a degree of polymerization of from 500 to 4,400 and an alkenyl group content of from 0.01 to 10 mole percent; Reactant a di(HO-endblocked)-polydiorganosiloxane polymer having a degree of polymerization of from 300 to 2,000 and lacking carbon-carbon double and triple bonds; wherein the di(HO-endblocked)-polydiorganosiloxane polymer comprises HO(R M) 2 SiO 1/2 end-units (M units) having hydroxy end-groups and a plurality of (R D) 2 SiO 2/2 units (D units) being free of both carbon-carbon double and triple bonds and each R M and R D independently is (C 1 -C 6)alkyl, (C 3 -C 6)cycloalkyl, or phenyl; and Reactant is an alkenyl-containing coupling agent of formula (R V,Alkenyl)Si 2, wherein R V is (C 1 -C 6)hydrocarbyl, Alkenyl is (C 2 -C 6)alkenyl, and each X independently is a condensation reaction leaving group; wherein the contacting gives a polydiorganosiloxane precursor having a degree of polymerization of from 500 to 4,400 and an alkenyl group content of from 0.01 to 10 mole percent; (ii) Contacting together at least the polydiorganosiloxane precursor and a polyorganosiloxane MQ resin in contact with a condensation reaction catalyst, wherein the polyorganosiloxane MQ resin comprises M and Q units, to give a HO-functional polydiorganosiloxane-(MQ resin) copolymer having a hydroxyl content (Si-OH content) greater than 15,000 ppm; and (iii) Contacting together at least the HO-functional polydiorganosiloxane-(MQ resin) copolymer and a trihydrocarbylsilylating agent to give the capped polydiorganosiloxane-(MQ resin) copolymer having a hydroxyl content of less than 13,000 ppm; and wherein the hydroxyl content of the capped polydiorganosiloxane-(MQ resin) copolymer is less than the hydroxyl content of the HO-functional polydiorganosiloxane-(MQ resin) copolymer.